The salmon’s life cycle inspires more awe and reverence than most species in the animal kingdom, but on farms, they’re ...

Fish species living in the deep sea feature a surprisingly large range of body shapes that evolved in different ways and at ...

Sleep in fish may look different from humans, but rest is essential for survival. Here’s what experts have to say about fish sleep. A protective mucous cocoon surrounds this parrotfish as it sleeps in ...

Researchers have announced the rediscovery of Moema claudiae, a species of seasonal killifish in Bolivia that was previously ...

Some “clicks” made by sperm whales may actually be “clacks,” but marine biologists debate what, if anything, that means.