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Practice Speaking: Read Aloud
ID: #47026
Long Bats Estimate
Historically what has been used to estimate bats has been photographic estimates, visual estimates, mark-recapture estimates, and those have been highly prone to bias. Newer technology, like thermal imaging cameras is accurate, but expensive. So at a time of epic bat mortality due to, for example, the fungal white-nose syndrome that's wiping out bats in Canada and US.
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