Two studies reveal that the communication systems of most cetaceans examined adhere to the principles of efficiency and ...

Baleen whales, known for their filter-feeding systems, differ from their toothed relatives in behavior and survival strategies. Unlike dolphins or sperm whales ... like humpbacks and gray whales, ...

A sperm whale’s tooth can weigh more than two pounds and they are illegally trafficked to be used as decorations and for ...

A rare dwarf sperm whale mysteriously washed ashore in Australia, prompting an official investigation, according to news reports. Beachgoers in Adelaide — a city on the coast of South Australia — ...