Editor’s Note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. With appendages growing out of its head ...

Add Yahoo as a preferred source to see more of our stories on Google. An artist's depiction of Anomalocaris canadensis. The grey-colored creature is depicted swimming underwater and has a whale-like ...

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Biomechanical studies on the arachnid-like front 'legs' of an extinct apex predator show that the 2-foot (60-centimeter) marine animal Anomalocaris canadensis was likely much weaker than once assumed.

(Maura McCarthy) This fossil is a pair of claws from Anomalocaris canadensis, the largest Cambrian predator reaching lengths up to three feet, and the first of its type to be discovered at the Stanley ...

Add Yahoo as a preferred source to see more of our stories on Google. With appendages growing out of its head and an armored mouth, an ancient shrimplike creature was thought to be the quintessential ...