Introduction Twice each year, one of nature’s greatest spectacles unfolds largely unnoticed. As the seasons change, billions of birds leave their breeding grounds and embark on journeys that may span …
Few animals have surprised scientists as much as the naked mole rat. Despite living far longer than most rodents, these unusual underground mammals almost never develop cancer naturally. Their extraordinary …
Every winter across North America, one small amphibian performs what seems impossible. The wood frog freezing survival strategy allows this remarkable species to endure conditions that would kill nearly every …
Most people think of sharks as cold-blooded predators whose body temperature simply matches the surrounding water. While that is true for most shark species, the great white shark warm blooded …
Introduction At first glance, a mantis shrimp doesn’t look like one of the ocean’s greatest marvels. Most species are only a few inches long, hiding quietly inside burrows among coral …
Introduction The Namib Desert stretches along the Atlantic coast of southwestern Africa, where immense dunes meet one of the coldest ocean currents on the continent. Parts of this landscape receive …
Introduction At first glance, a rocky tide pool may appear calm and peaceful. Small pools of seawater left behind by the receding tide reveal colorful sea stars, mussels, barnacles, sea …
Introduction For thousands of years, the night sky was one of humanity’s greatest shared experiences. On a clear evening, people across nearly the entire planet could look up and see …
Learn how scientists classify insects into different orders, discover the characteristics of each major group, and understand their important roles in gardens, farms, forests, and natural ecosystems. With more than …
Every year, the arrival of the summer solstice marks a special moment in Earth’s journey around the Sun. Known as the longest day of the year in the Northern Hemisphere, …