Discover how reindeer brave freezing tundras with hollow fur, spiked hooves, and brains built for icy survival.

As Girlguiding announces it is excluding trans girls from its membership, one family’s story reveals the fear and pain of a ...

Researchers have recorded rare footage of animals whose bodies are so transparent they appear to vanish in open water. These ...

Urban raccoons are developing shorter snouts, revealing how city life is subtly reshaping wildlife anatomy and behavior.

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

From rainforest canopies to sunlit savannas, these wildlife photographs take us around the world to witness the remarkable ...

Across their 10,000 species, sea slugs sport striking colors, external gills, and even the ability to regrow a body from a ...

Labuk Bay Proboscis Monkey Sanctuary is one of the best places in the world to see big-nosed pot-bellied proboscis monkeys in the wild.

A Galápagos bird species is stunning behaviorists with their “freewheeling” lifestyles. Described in the journal PLOS One, ...

Perched on a plastic chair overlooking a colony of Nazca boobies in the Galápagos Islands, researcher David Anderson ...

As a corner of Africa heats up, new research shows how the future of the species rests with powerful matriarchs making tough ...