A new analysis of the extinct marine animal Anomalocaris canadensis suggests the Cambrian hunter was more of a weakling than once assumed.

A. canadensis was possibly agile, fast, ... A. canadensis was one of the largest animals to live 541 million to 530 million years ago during the Cambrian Period.

The team concluded that, while A. canadensis might have been adept at grabbing animals, the animal's two facial appendages would've been too delicate to actually pierce through trilobites' tough ...

Beavers. The beaver, also known as Castor canadensis, is the largest rodent in North America, with some reported as big as 90 pounds and 3 feet in length.Beavers are most known for their four ...

It was, researchers said, “unlike any living animal”. Mosura had a unique abdomen-like body region with multiple segments at its back end, according to a new study published in the journal ...