Here, we’ll explore the inside of the duck’s mouth and learn more about their bills and what they use them for. Then, we’ll check out their gizzard and find out just why ducks eat rocks. We’ll go over ...

The average whale shark measures about 30 feet long, with a mouth stretching nearly 5-feet across. The largest whale sharks ...

Some whales, like sperm whales and beaked whales, are classified as "toothed whales" because they have teeth. Baleen whales, on the other hand, have large, comb-like "baleen plates" that are made ...

Up close, the teeth resemble spindly plant roots or mealworm bodies. The specimen has about 480 of them, which forms a grid similar to the huge plates of baleen that certain whales have in their jaws.

Are Orcas Not Whales But Dolphins? Dubbed the “killer whale,” orcas have mouths full of dozens of interlocking, 3-inch teeth.

We explore the origin of the Mystacodon, what we know today as baleen whales.

Beluga whales are a type of whale with teeth. Shutterstock So why don’t baleen whales have teeth? It’s all based on their diet and how they capture their food. Unlike you and me, whales don ...

Whales eat a variety of ocean life, depending on what species you mean. Some have teeth and swallow prey whole while others filter through baleen.

Fossils have revealed an ancient marine reptile with a loosely connected jaw that allowed its throat to balloon out to a massive size so it could filter feed the way right whales do today.

Toothed whales, such as sperm whales, beaked whales, dolphins and porpoises, catch and eat their food using a variety of different forms of teeth. Baleen whales include the bowhead whale, the humpback ...

There were no teeth on the inside of that snout, however — instead one would find rows of long strip-like keratin plates. Like baleen whales today, it used these plates to eat its prey through a ...

Aug 2 (Reuters) - Move over, blue whale. There is a new contender for the most massive animal in Earth's history. Scientists on Wednesday described fossils of an early whale unearthed in Peru ...