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 strap-toothed whale has died after an attempted stranding on East Clive Beach on Wednesday. Locals spotted two of the ...

Killer whales are the only natural predator of baleen whales—those that have "baleen" in their mouths to sieve their plankton ...

One of the most unique about whales is that they're the largest animals to ever exist on Earth — even bigger than the largest ...

Whales, or cetaceans, are divided into two categories: baleen whales and toothed whales. As their name suggests, baleen whales (Mysticetes) do not have teeth. Instead, they have baleen, a bristle-like ...

A rare dwarf sperm whale mysteriously washed ashore in Australia, prompting an official investigation, according to news ...

New research finds some baleen whale species call at such deep frequencies that they're completely undetectable by killer whales, which cannot hear sounds below 100 hertz. These also tend to be the ...

More solitary than toothed whales, baleen whales face predatory attacks from killer whales, especially mother and calf pairs. When attacked, some species fight back, while others choose flight.

Killer whales are the only natural predator of baleen whales — those that have "baleen" in their mouths to sieve their plankton diet from the water ...

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

Some baleen whales avoid killer whale attacks by singing songs at deep frequencies that their predators cannot hear.