Superstrength: Elephants

Packed with hundreds of muscles, an elephant's trunk alone can lift 600 pounds (270 kilograms), according to experts at the University of Michigan Museum of Zoology.

Considering that elephants also shake and even uproot trees with their bodies, it all adds up to one superstrong mammal. In part because of this "superpower," both African elephants (pictured) and Asian elephants have long been trained as beasts of burden, transportation, and war.

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