According to their results recently published in the journal Ecology and Evolution, the culprit is clear: a killer whale ...

Ptychodus was one of the largest prehistoric sharks, with some estimates placing its size up to 33 feet in length! Like today’s whale sharks it had a mouth full of teeth that were used to crush ...

Recent findings used wildlife forensics and citizen science data to provide the first confirmed evidence of killer whale ...

“From modern sharks, it is known that larger individuals ... Yet their size hindered their mobility, something that prehistoric whales could have taken advantage of. Baleen whales of that ...

Some think that the whale shark's cartilaginous skeleton may prevent it from reaching larger, blue whale-like proportions. The prehistoric shark megalodon is often considered the biggest shark to ever ...

Estimates suggest megalodon actually grew to between 15 and 18 metres in length, three times longer than the largest recorded great white shark. It may have been comparable in length to today's ...

An 18-meter-long, 50-ton behemoth once patrolled even the darkest corners of the world's oceans millions of years ago. The ...

Different sharks use different strategies to eat. Like many actual whales, the whale shark filter-feeds, straining teeny plankton from up to 400,000 gallons (1.5 million liters) of filtered water ...

Based on DNA analysis from the bite wounds on the carcass of a large white shark washed ashore near Portland in Victoria in ...

Today's marine trophic levels cap at six, with creatures like killer whales and great white sharks. The discovery of giant marine reptile apex predators occupying a seventh trophic level ...