Disease and predation have been poorly studied, but large sharks and killer whales are likely the only natural predators. In September 2021, AWI, the Center for Biological Diversity, and VIVA Vaquita ...

A shark only just formally discovered might already be extinct - a fate no shark has yet suffered in the human era - while an Amazon river dolphin has become endangered, a Red List of species in ...

Allan Bogle put on his snorkelling gear to swim with dolphins in Portstewart Dolphins swimming alongside beachgoers and a thresher shark leaping out of the sea are among some of the unusual images ...

Organisms have only two types of traits: primitive and derived ... Now let's compare traits on the lamprey-dolphin-shark-wolf branch. Dolphins and sharks both have a torpedo-like shape, so ...