Climate change and irregular monsoons have disrupted animal breeding cycles and led to a surge in health issues for domestic ...

An egg-shape trend found among birds shows up in miniature with very protective bug parents. Elongated eggs fit more compactly under mom.

But these small, smiling salamanders are also helping scientists explore a medical mystery: Can people someday regrow arms or legs? Axolotls are special because they can regrow body parts no ...