For centuries, stories circulated about enormous birds linked to distant islands and unexplored lands. Some travellers heard tales of creatures so large they seemed closer to legend than reality.

Eggs from the American Museum of Natural History's Ornithology Collection of an elephant bird (back), an ostrich (front right), and a hummingbird (front left, in box). Elephant birds are thought to ...

2026's top 10 critically endangered animals battle wildlife extinction threats on the latest endangered species list. Ravish Maqsood/Pexels ...

For decades, ecologists have theorized that the extinction of one important species could set off a chain reaction of losses throughout an ecosystem. Now, new research offers some of the clearest real ...