For starters are they whales, or sharks? These gentle giants are both beautiful and fascinating and we bet you didn't know ...

Filter-feeding sharks include whale sharks, megamouth sharks and basking sharks. These species have teeth, but they are largely vestigial - meaning they once served a purpose but over time the animal ...

Despite having about 3,000 tiny teeth, whale sharks use their expansive mouths to filter feed, consuming plankton and small ...

"This species of scallop has been extinct for almost 2 million years," the poster from North Carolina told Newsweek.

Because sharks shed their teeth throughout their lifetimes and leave bite marks on escaped prey, it would be easy for us to detect the presence of an enormous whale-hunting shark even if the shark ...

The only part of their skeleton not made from this soft, flexible tissue is their teeth. The group includes the more famous animals such as whale sharks and great whites, but also all rays, skates and ...

A six-year-old boy has found a shark tooth belonging to a giant prehistoric ... these were "specialist whale eaters - they were ambush hunters," Prof Garrod said. The name means "big tooth ...

It's bigger than the biggest whale shark, which is the largest fish found ... How big are the megalodon's teeth? Watch the video above to see how big the megalodon's tooth compares to that of ...

While some species like lemon sharks do indeed have pointed teeth to help catch their slippery prey, other species like the whale shark are filter feeders, and have no sharp teeth at all.

Their skin is covered with denticles, tooth-like scales that differ from ... These sharks are ovoviparous (born live from an egg). Largest Shark: The whale shark (Rhincodon typus) is the largest ...

The sand around him was strewn with fossil shark teeth, sea urchin spines ... "It isn't every day that you see a whale's leg," he said, lifting the bone reverently in both hands.

Scientists have discovered that the long-extinct megalodon, also known as the megatooth shark, had a body temperature ... Scientists discover massive ancient whale that lived 40 million years ...