Lamniform sharks such as great whites and tiger sharks are famous for their size. The first such giants evolved 15 million ...

This important study shows that different forms and mixtures of cardenolide toxins in tropical milkweed, especially nitrogen- and sulfur-containing types, change how monarch caterpillars eat, grow, ...

A prairie butterfly shifts color, behavior, and eye biology across seasons. Sunlight and air guide how it moves and senses ...

From extinction to rebirth, here’s a breakdown of how the takahē — one of Earth’s rarest birds — came back from an ...

Explore the remarkable similarities and differences between sperm whales and giant squid, from size and behavior to diet and ...

Although millions upon millions of living creatures fly, feed and reproduce in the air, this habitat has hardly been ...