borer beetle, any of a number of species of insects that are included in the family Anobiidae (order Coleoptera). These beetles tend to be small (1 to 9 mm, or less than 0.5 inch) and cylindrical. When disturbed, they usually pull in their legs and play dead.

The best-known borers are the cigarette beetle, deathwatch beetle, drugstore beetle, and furniture beetle. They live in drugs, cereals, spices, wood, tobacco products, and upholstery materials, and still others live in fungi, seeds, and galls and under bark.

The name borer beetle is also applied to tree-boring members of the subfamily Scolytinae.

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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This article was most recently revised and updated by Kara Rogers.
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