big brown bat

noun

Definition of big brown bat 

: an insectivorous medium-sized bat (Eptesicus fuscus) having brownish fur that is found from southern Canada to northern South America and that often roosts in buildings

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These species include big brown bat, silver-haired bat, eastern red bat, hoary bat, evening bat and eastern myotis. Sheryl Devore, Lake County News-Sun, "Lake County bat monitoring program hopes to prevent fungus killing critical mammal," 23 Apr. 2018 Little brown bats tend to roost in barns and sheds in colonies of 30 or more, while big brown bats [which are not endangered] have roost sites in attics and in people’s houses in colonies of 10. Margeaux Sippell, BostonGlobe.com, "Little brown bats are dying; why we should care," 16 Apr. 2018 For instance, a study published last fall in PLOS Biology explored the reason that big brown bats waggle their heads like puppy dogs and curl the tips of their ears down. Jason Bittel, Smithsonian, "This Echolocating Dormouse Could Reveal the Origins of One of Nature’s Coolest Superpowers," 23 Mar. 2017 In the same study, the researchers estimated that a colony of 150 big brown bats in Indiana ate nearly 1.3 million insects per year, and a million bats would consume 600 to 1,320 metric tons of insects per year. Rachel E. Gross, Smithsonian, "How a Deadly Flesh-Eating Fungus Helped Make Bats Cute Again," 27 Oct. 2017 In one experiment, a big brown bat (Eptesicus fuscus) hibernated in a refrigerator for 344 days, suggesting bats may deserve the title (although, the animal didn’t exactly choose to and didn’t survive the feat). Christie Wilcox, National Geographic, "Some Animals Don't Actually Sleep for the Winter, and Other Surprises About Hibernation," 12 Oct. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'big brown bat.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of big brown bat

1898, in the meaning defined above

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The first known use of big brown bat was in 1898

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