Penguins are an enduring favorite in aquariums all over the world. Even videos are fun to watch, as penguins dive into the ocean or waddle along the shores of Antarctica. Although there are a number ...

New research finds that territorial behavior and diet help explain why some birds sing more often at dawn, challenging ...

African bullfrogs (Pyxicephalus adspersus) are large frogs that live across sub-Saharan Africa and prefer areas where water ...

Ancient fossils from Alaska reveal birds nested in the Arctic 73 million years ago, challenging previous assumptions about ...

The enamel that forms the outer layer of our teeth might seem like an unlikely place to find clues about evolution. But it ...

The paper documents the earliest known evidence of birds nesting in polar regions. Each spring, the Arctic comes alive with the sounds of chirping and the arrival of fluffy hatchlings, as millions of ...