Millions of female bats rear their pups in Bracken Cave. Although the mothers all leave the cave nightly, on their re...

Elizabeth25 on September 24 at 04:55PM

explain b

how does the stimulus exclude alternative explanations? I did not catch that at all in the stimulus.

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Emil-Kunkin on September 27 at 03:19AM

The author knocks out two plausible alternatives to mothers recognizing their pups' calls. First the author excludes the possibility that the bats use some form of recognition other than their calls. Second, the author knocks out the possibility that the pups recognize their mothers.