Facts
River otters can hold their breath for up to 8 minutes. (Dvornich, Tudor, and Hannafious. 2010)
Otters wash themselves every time they are done eating (Dvornich, Tudor, and Hannafious. 2010)
River otters can dive up to 60 feet under water. (Dvornich, Tudor, and Hannafious. 2010)
Baby otters are called pups (Dvornich, Tudor, and Hannafious. 2010)
Otters use tools, mostly to obtain food. These tools include rocks and even peices of glass. (Cherilyn. 2009)
Newborn otters cannot sink or dive. (Dvornich, Tudor, and Hannafious. 2010)
Sea Otters have pockets under their arms. (Cherilyn. 2009)
A group of Sea Otters resting together is called a raft because they float together on the waves in a dense group. (Cherilyn. 2009)
Sea Otters are the only species of marine mammals that do not have blubber. (Cherilyn. 2009)
Sea Otters have ten times more hairs in one square inch of fur than humans have on their entire head. (Cherilyn. 2009)
Sea Otters’ teeth are strong enough to bite open a clam shell. (Cherilyn. 2009)
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Sea Otters in the wild eat over twenty five percent of there body weight a day. (Cherilyn. 2009)
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Sea Otters hold hands while they sleep so they don't float away from each other. (Cherilyn. 2009)
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References
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Dvornich K., M. Tudor, D.Hannafious. 2010. River Otter. Facts for Kids. NatureMapping.
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J. Cherilyn. "10 Amazing Facts About Sea Otters | Ocean of Hope."Protecttheocean.org. Ocean of Hope, 2009. Web. 17 Apr. 2014.