Despite lacking a hippocampus entirely—and having diverged from the mammalian lineage roughly 400 million years ago—larval ...

There are few things more joyful, if occasionally nerve-wracking, than having a pet in your home. And plenty of people agree.

When we say that someone is a “fish out of water,” we sometimes mean to suggest that they are uncomfortable or out of their ...

Cuttlefish attract prospective sexual partners by creating a pattern on their skin, based on the orientation of light waves.

Sleep is a universal biological state that allows all animals, from mammals to amphibians, fish and even insects, to restore ...

The new food pyramid defies decades of nutrition research—but one recommendation may align with some newer findings ...

When oxygen disappears, most fish suffocate. This one ferments its own metabolism and waits months for spring beneath frozen ...

Crucian carp possess a remarkable ability to survive for months in oxygen-free, frozen northern lakes. These fish convert ...

UC Davis researchers are studying why some corals can stand heat and heal from bleaching. The answers could help protect ...

The strong preference for humans could lead to the transmission of more viral diseases and adverse health outcomes for people ...

A popular idea suggests a link between big brains and a rich social life, but octopuses don't fit the pattern, which suggests ...

Venom is one of nature’s most effective (and fascinating) survival tools. Across the world, a wide range of animals have ...