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Tardigrades have even been featured in popular culture, including an episode of Star Trek: Discovery, where they were used as a propulsion system for a spaceship. But while tardigrades may seem like science fiction, they are very much a real and fascinating part of the natural world. These tiny, water-dwelling creatures, also known as water bears or moss piglets, have been around for over half a billion years and have evolved some truly remarkable survival strategies. Tardigrades can survive in extreme environments that would kill most other organisms, including temperatures ranging from -272°C to 151°C, pressures six times greater than those at the bottom of the ocean, and even the vacuum of space. They can also survive dehydration, radiation, and exposure to toxins. Tardigrades achieve this impressive feat through a combination of strategies, including the ability to enter a state of suspended animation called cryptobiosis, which allows them to survive without water for years. One of the key factors that enable tardigrades to survive in such extreme conditions is their ability to repair their DNA. Tardigrades have a unique protein called Dsup, which protects their DNA from damage caused by radiation. This protein has even been shown to protect human cells from radiation damage. Dr. Thomas Boothby, a leading tardigrade researcher at the University of Wyoming, has discovered that tardigrades can also produce large amounts of unique proteins called tardigrade-specific intrinsically disordered proteins (TDPs) in response to desiccation. These proteins help protect the tardigrades' cells from damage and prevent them from drying out. Tardigrades are fascinating not just for their survival abilities, but also for their unique biology. They have a complex digestive system, a unique nervous system, and a fascinating reproductive system that involves the transfer of genetic material between individuals. By exploring the science behind these tiny creatures, we can gain a deeper understanding of the natural world and the amazing ways that living organisms can survive and thrive in even the most extreme conditions.
How do we grow seedless fruit? Discover the fascinating history and science behind hybridization and grafting, and the latest genetic research that could lead to new seedless varieties. From Navel oranges to mutant sugar apples, explore the world of fruit breeding.
Plants have been evolving for millions of years and have developed incredible adaptations to survive in their environments. One of the most impressive adaptations is drought resistance. In this write-up, we will explore the fascinating world of plant evolution and the incredible ways that plants have adapted to survive in dry environments. Did you know that there are plants that can survive without water for years? The cactus is one such plant that has developed unique adaptations to survive in the harsh desert environment. Its thick stems store water, and its shallow roots can quickly absorb moisture when it rains. The cactus also has small leaves that reduce water loss through transpiration and spines that provide shade to the stem, reducing water loss even further. Another interesting example of drought resistance in plants is the succulent. Succulents store water in their leaves, which become plump when water is available and shrink when water is scarce. They also have shallow roots that spread widely to quickly absorb moisture when it rains. Leading academics in the field of plant evolution and drought resistance have made significant contributions to our understanding of these adaptations. For example, Dr. Christine A. Beveridge has studied the molecular mechanisms behind drought resistance in plants and have identified genes that play a crucial role in this process. Her work has led to the development of drought-resistant crops, which have the potential to improve food security in dry regions. In conclusion, the world of plant evolution and drought resistance is full of fascinating facts, stories, and examples. By exploring this topic independently, students can deepen their understanding of the amazing adaptations that plants have developed over millions of years to survive in their environments.
Have you ever wondered why some animals are bigger than others? Or why some animals live longer or reproduce faster than others? These differences are due to an animal's life-history traits, which can have a significant impact on its chances of survival and reproductive success in different environments. Body size, for example, can affect an animal's ability to find food, avoid predators, and regulate its body temperature. Larger animals may have an advantage in colder environments, where they can retain heat more efficiently, while smaller animals may have an advantage in warmer environments, where they can cool down more easily. In terms of reproduction, larger animals may have more mating opportunities, while smaller animals may have a higher reproductive rate and produce more offspring. Lifespan is another important life-history trait. Some animals, like turtles and whales, can live for many decades, while others, like insects and rodents, have much shorter lifespans. Long-lived animals may have a better chance of surviving through periods of environmental change or fluctuation, while short-lived animals may be able to reproduce more quickly and take advantage of favorable conditions. Reproductive rate is a third key life-history trait. Some animals, like rabbits and mice, can have many offspring in a short period of time, while others, like elephants and humans, have fewer offspring over longer periods of time. High reproductive rates can help animals respond quickly to environmental changes or take advantage of favorable conditions, while low reproductive rates can lead to more parental investment in each offspring and a better chance of survival. So, how do these life-history traits affect animal survival and reproductive success in different environments? To answer this question, scientists study a variety of different animal species and environments, using techniques like field observations, experiments, and modeling. They also use tools like life tables, which show how an animal's survival and reproductive rates change over time, and population models, which predict how a population will change over time based on different factors. Leading scientists in this field include Susan M. C. Clegg, a researcher at the University of Exeter, who studies how life-history traits affect bird populations, and Steven C. Stearns, a professor at Yale University, who has written extensively on life-history theory and evolution. In conclusion, life-history traits play a crucial role in determining an animal's chances of survival and reproductive success. By exploring the fascinating world of life-history traits, students can gain a deeper understanding of how evolution works and how organisms adapt to their environments.
The Permian-Triassic extinction event that wiped out 95% of life on Earth serves as a model for studying the current biodiversity crisis. Researchers from the University of Bristol, the California Academy of Sciences, and the China University of Geosciences analyzed marine ecosystems before, during, and after the event to understand the series of events that led to ecological destabilization. They found that the rate of species loss today outpaces that during the Great Dying, and stress the importance of considering functional redundancy in modern conservation strategies.
Fungi are more than just pizza toppings or irritants like athlete's foot. They are a distinct life-form that plays a vital role in the health of our planet. Fungi can absorb oil spills, control insects' brains, and produce life-saving medicines like penicillin. They are also eco-warriors, essential to healthy soil and trapping CO2, potentially solving global warming on their own. Fungi are neither plant nor animal, but are genetically closer to animals than plants. They form dense fungal networks called mycelium, which plants use to communicate with each other. Fungi can also employ other organisms, like leaf-cutter ants, to do their work for them. Fungi are fascinating and adaptable, and there is still much we have yet to learn about them. By exploring the world of fungi, you can become a real fun-guy at parties and gain a deeper understanding of the world around you.
Did you know that almost everything around you is being eaten by tiny organisms called microbes? These hordes of bacteria, archaea, and fungi have evolved to break down tough organic material into digestible nutrients. However, there is one material that almost no microbes can biodegrade: plastics. This is because most plastics have only been around since the 1950s, so most microbes haven't had time to evolve enzymes to digest them. As a result, plastics just turn into countless, tiny, indigestible pieces that pollute the environment. However, researchers have discovered microbes that may be able to take a bite out of this growing problem, creating super-enzymes that could break down plastics faster. By exploring the science behind microbes and biodegradability, you can learn how to become part of the solution to this global issue. Not only will you expand your knowledge, but you will also contribute to creating a cleaner, healthier planet.
Are you fascinated by the natural world and want to explore the mysteries of the universe? Then the study of Natural Sciences might be the perfect fit for you! Natural Sciences is a broad field of study that encompasses a wide range of scientific disciplines, including biology, chemistry, physics, geology, and astronomy. It is an interdisciplinary field that seeks to understand the natural world and the laws that govern it. One of the most appealing aspects of studying Natural Sciences is the opportunity to make groundbreaking discoveries that can change the world. From the discovery of penicillin by Alexander Fleming to the development of the theory of relativity by Albert Einstein, Natural Sciences has produced some of the most significant innovations in human history. And with new technologies and research methods emerging every day, the possibilities for future discoveries are endless. At the undergraduate level, students can choose from a variety of majors and modules that allow them to specialize in a particular area of Natural Sciences. For example, a biology major might focus on genetics or ecology, while a physics major might specialize in astrophysics or quantum mechanics. And for those who want to take their studies even further, graduate programs in Natural Sciences offer a wide range of research opportunities and specialized areas of study. But what can you do with a degree in Natural Sciences? The answer is almost anything! Graduates of Natural Sciences are highly sought after in a variety of industries, including healthcare, technology, energy, and environmental science. Some of the most notable employers in these industries include NASA, Tesla, and the World Health Organization. To succeed in Natural Sciences, you need to have a curious mind, a passion for discovery, and a strong foundation in math and science. You should also be comfortable with experimentation and problem-solving, as these are the skills that will help you make groundbreaking discoveries and contribute to the advancement of human knowledge. So if you're ready to explore the mysteries of the universe and make a difference in the world, consider studying Natural Sciences. It's a field that offers endless possibilities for discovery and innovation, and it's sure to be a rewarding and fulfilling career path.
The making of chocolate is a primitive and unpredictable process involving wild rainforest insects, fungi, and microbes. Discover how the microbiome of cacao trees, tiny midges, and fermentation contribute to the $110-billion chocolate industry. Learn how researchers are working to standardize cacao-making and develop cacao-fermentation "starters."
Discover how early mammals' miniaturization and skull simplification allowed them to thrive on insects and eventually increase brain size, all while dinosaurs roamed the Earth. Learn from the research of Dr. Stephan Lautenschlager and Professor Emily Rayfield of the Universities of Birmingham and Bristol.
Have you ever wondered what goes into creating a beautiful garden or a lush forest? Do you have a fascination for the natural world and a passion for plants? If so, a career in Botany might be the perfect fit for you! Botanists are scientists who study plants and their relationship with the environment. They explore the biology, ecology, and evolution of plants, including their structure, function, and distribution. Botanists play a crucial role in understanding and preserving the natural world, as well as developing new medicines, crops, and other products. As a Botanist, you could work in a variety of settings, from research labs and botanical gardens to national parks and conservation organizations. You might specialize in areas such as plant genetics, ecology, or biotechnology, or focus on specific types of plants, such as trees, flowers, or algae. Typical duties of a Botanist might include conducting field research, analyzing data, writing reports and articles, teaching and mentoring students, and collaborating with other scientists and professionals. You might also work on projects related to climate change, biodiversity, or sustainable agriculture, among other topics. To become a Botanist, you'll typically need a bachelor's degree in Botany, Biology, or a related field. Popular undergraduate programs and majors include Plant Science, Horticulture, Environmental Science, and Biochemistry. You may also choose to pursue a graduate degree for advanced research or teaching opportunities. Helpful personal attributes for a career in Botany include curiosity, creativity, attention to detail, and a passion for learning. You should also have strong analytical and communication skills, as well as the ability to work independently and as part of a team. Job prospects for Botanists are generally good, with opportunities in both the public and private sectors. Some notable potential employers include the United States Department of Agriculture, the National Park Service, the Smithsonian Institution, and private biotechnology companies. So if you're interested in a career that combines your love of plants with scientific inquiry and environmental stewardship, consider becoming a Botanist. Your work could make a real difference in the world and inspire others to appreciate the beauty and complexity of the natural world.
Have you ever wondered how we know how old something is? For trees, we count the rings, and for people, we ask for their birth certificate. But what about fossils? Well, fossils have their own internal clock, and scientists can read it by looking at the ratio of two different types of carbon atoms. Carbon dating works for fossils up to about 60,000 years old, and by measuring the ratio of carbon 14 to carbon 12, we can determine how many thousands of years have passed since the animal died. Learning about carbon dating and other scientific methods can help us better understand the world around us and our place in it. So, why not explore this fascinating topic further and discover the secrets that fossils can reveal?
Understanding the science behind the changing colors of leaves in the fall is not only fascinating but also important for our understanding of the natural world around us. The process is triggered by less daylight, causing the old chlorophyll to disappear and yellow and orange pigments to become visible. The intensity of the colors is connected to temperature, and the drier autumn weather triggers a hormone telling the tree to drop its leaves. Evergreens have a waxy coating and contain a chemical like anti-freeze to survive the winter. By learning about these concepts, students can gain a deeper appreciation for the natural world and develop critical thinking skills. Additionally, understanding the science behind fall leaves can inspire students to explore other scientific topics and engage in self-directed projects.
Pesticides not targeted at flowers may pose a hidden threat to pollinators, according to new research from Trinity and DCU. The study, the first of its kind in Ireland, found residues of several pesticides in the nectar and pollen of both crop and wild plants, with some chemicals lingering for years after application. The findings have implications for the health of bees and other pollinators, as well as for ecosystem function, crop production, and human health.
A team of undergraduate students from Colgate University developed SealNet, a seal facial recognition system that uses deep learning and a convolutional neural network to identify harbor seals. SealNet could be a useful, noninvasive tool for researchers to shed more light on seal behavior, including site fidelity and movements. The software shows promise and could be paired with another photo identification method to identify seals by distinctive markings on their pelage. In the future, an app based on SealNet could allow citizen scientists to contribute to logging seal faces.
Citizen scientists in Denmark have discovered the oldest scientifically-confirmed European hedgehog, living for 16 years, 7 years longer than the previous record holder. However, the average age of hedgehogs was only around two years, with many dying before their first birthday due to road accidents. Interestingly, male hedgehogs lived longer than females, despite being more likely to be killed in traffic. The research also investigated the impact of inbreeding on hedgehog lifespan, with surprising results. Discover the secrets of hedgehog longevity and conservation efforts in this fascinating study.
Have you ever wandered through a forest and wondered about the secrets that lie within? The Hidden Life of Trees by Peter Wohlleben is a fascinating exploration of the communication and community that exists within forests. Wohlleben shares his love for the woods and explains the incredible processes of life, death, and regeneration that take place in the woodland. Through groundbreaking discoveries, he reveals the previously unknown life of trees and their communication abilities. Discover how trees live together with their children, share nutrients, and create an ecosystem that benefits the whole group. Recommended for environmentalists, biologists, ecologists, and anyone interested in the natural world. The Hidden Life of Trees provides a unique perspective on the life and communication of trees, revealing the intricate processes of the forest ecosystem. It offers insights into the importance of community and the impact of solitary life on trees, which can also be applied to human society. This book is relevant to those interested in environmental sustainability and the impact of eco-friendly practices on the health of our planet. It is also a fascinating read for those who simply appreciate the beauty and complexity of the natural world.
Stanford-led research finds that the world's largest animals, rorqual whales, owe their size to feeding on tiny creatures in the sea. However, their survival requires a minimum body size, which could put them at risk of extinction due to rapid environmental change. By examining the smallest living species in this group, the authors found that individuals need to grow to at least 4.5 meters to eat enough food to survive. The study sheds light on how climate change might affect krill populations and put certain whale species at risk of extinction.
Geneticists have discovered that tiny fragments of DNA in the air can be used to detect different species, providing a non-invasive approach for detecting rare, invasive and hard-to-find animals. Two independent research groups in Denmark and the UK/Canada conducted simultaneous proof-of-concept studies using filters to collect airborne environmental DNA (eDNA) from different zoo enclosures. The results were surprising and successful, with DNA from more than two dozen different species of animals identified, including tigers, lemurs, dingoes, water voles, and red squirrels. The discovery offers new possibilities for studying and protecting wildlife.
Have you ever been captivated by the mysterious depths of the ocean? Do you have a passion for marine life and the environment? If so, then Marine Biology might just be the perfect field of study for you! Marine Biology is a fascinating and dynamic field that explores the diversity of life in the ocean and the complex interactions between marine organisms and their environment. It is a field that is constantly evolving, with new discoveries and innovations being made all the time. One of the most appealing aspects of Marine Biology is the opportunity to work with a wide variety of marine organisms, from tiny plankton to massive whales. Marine Biologists are involved in a range of exciting research projects, from studying the behavior of dolphins and sharks, to investigating the impacts of climate change on coral reefs. Some of the most inspiring academic discourse in Marine Biology includes the groundbreaking research on marine ecosystems, such as the discovery of deep-sea hydrothermal vents and the unique organisms that inhabit them. Notable academic figures in this field include Sylvia Earle, who has dedicated her life to ocean conservation, and Rachel Carson, who wrote the influential book "The Sea Around Us". At the undergraduate level, students typically study a range of majors and modules, including marine ecology, marine conservation, and marine biotechnology. There are also opportunities for further specialization, such as studying the genetics of marine organisms or the impacts of pollution on marine ecosystems. Real-life examples of exciting research in these areas include the development of new drugs from marine organisms, and the use of DNA sequencing to track the movements of marine animals. There are a wide range of potential future jobs and roles for graduates of Marine Biology, including marine conservationists, fisheries biologists, and marine park managers. Other popular careers that may be relevant include environmental consultants, science communicators, and policy advisors. Key industries for prospective future employment include government agencies, research institutions, and conservation organizations. Some notable and attractive potential employers include the National Oceanic and Atmospheric Administration (NOAA) in the US, the Australian Institute of Marine Science, and the Marine Biological Association in the UK. To succeed in Marine Biology, it is helpful to have a strong interest in marine life and the environment, as well as a passion for scientific inquiry. Other key attributes and skills include analytical thinking, attention to detail, and effective communication. With dedication and hard work, a degree in Marine Biology can lead to a rewarding and fulfilling career in a field that is both challenging and endlessly fascinating.
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