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Why do bilby have such bigears?

Updated: 8/17/2019
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12y ago

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The large ears of a bilby have several purposes. The main reason for having large ears is for thermo regulation (to cool the bilby). Blood flows quickly into the thin tissue around the Bilby's ears, preventing them from getting too hot during the day and from losing body heat quickly at night.

These large ears give the bilby an excellent sense of hearing, which makes up for the fact that their sense of sight is not as well-developed. They can also be rotated, much as a cat's ears do, to discern direction and distances of sounds.

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Q: Why do bilby have such bigears?
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