Whales

Get a sneak peek at National Geographic's new Great Migrations series.

Whales fertilize the ocean with their feces, which contain nutrients they carry from deep waters up to the surface.

Researchers can collect genetic samples from dolphins by capturing their exhaled breathe, rather than shooting them with darts, according to new research.

Whale calls provide information about the animals' abundance in oil-ravaged waters.

A special jaw adaptation allows humpback whales to gorge on water filled with prey.

Louder calls could take a toll on endangered species.

Humpback whales were previously believed to be less social than other whales, but a new study found that they actually form friendships that last for years.

Whales evolved shockingly fast into wide array of shapes and sizes.

Genetics suggests groups of killer whales that have their own personalities and physical features are really separate species.

Holes made by boneworms found in whale fossil bones, suggest worms evolved long ago.

The ancestors of blue whales may have filtered food from the mud, suggesting the origin of filter-feeding.

Scientists figure out how flippers help dolphins swim.

New worm species were discovered on whale carcasses.

"Free Willy" star chose the comforts of human care over freedom.

Overfishing led to shrinking ocean populations and animal sizes centuries ago.

Underwater microphones locate endangered whales in region where were thought extinct.

A new device can help marine mammals hear approaching ships and avoid collisions

Blue whales are migrating from California to the north Pacific Ocean, researchers find.

Mother right whales teach babies where to go in the vast ocean to find food.