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Sea otter (Enhydra lutris), also called great sea otter, rare, completely marine otter of the northern Pacific, usually found in kelp beds. Floats on back. Looks like sea otter laughing. saltwater otters
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Lion (panthera leo)
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vesper bat
brown bat
big brown bat
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serotine
serotine Serotine (Eptesicus serotinus).

serotine

genus of mammals
Also known as: Eptesicus
Written and fact-checked by
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Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....
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History

serotine, (genus Eptesicus), any of 23 species of vesper bats (family Vespertilionidae). Frequently, the name serotine is used for Old World members of the genus, and brown bat is used for New World species.

This article was most recently revised and updated by Amy Tikkanen.