What are some animals that give birth to huge numbers of offspring at once?” (Watch a female sea urchin produce millions of eggs.) The mola, or ocean sunfish, looks like an animal cracker someone bit ...

Decades ago, India’s tigers were on the brink of extinction. Slowly, their numbers have rebounded. But that ecological success has prompted a dire problem—and a race to save many of them from genetic ...

Excess nutrients, warmer temperatures, and an increasing population are causing explosions of algae worldwide.

Nighttime underwater photos show fish hanging out with jellyfish and anemones — perhaps seeking their protection.

Photos taken by blackwater divers offered a new glimpse into the early life stages of marine fishes and their interactions ...

Prioritizing which animals and plants to help is driven mostly by whether we like them or not. Some experts say that may not ...

Coral bleaching isn’t just an ocean crisis. Here’s how the global event endangers food security, local jobs—and the land itself. Sea water divides the sunset and a ghost land of corals in New Ireland, ...

For centuries, humans have lived underground. Today, that ancient practice is under dire threat—even as cave life makes more sense than ever. Gabriele Gouellain waits in the kitchen of her ...

It’s dangerous. It’s toxic. And it may provide hope for millions in agony. Pain management is among the most commonly reportedly reasons for medical cannabis use, but side effects have stymied many ...

National Geographic helped the famous conservationist get her start—and followed her chimpanzee research and advocacy for wildlife in a career that forever changed how we understand animal behavior.

Through her groundbreaking work with chimps in Africa, Goodall helped people understand that animals are sentient and intelligent. Renowned primatologist Jane Goodall’s decades of research into the ...

Boaters off the coast of California spotted sea creatures during a “cuddle puddle,” passengers said. Getty Images/iStockphoto Boaters were treated recently to the sight of sea creatures demonstrating ...