If you’re going to take the trouble to sing a song about how great you are, you probably want to make sure others are listening. It seems this is what male rock hyraxes do: they try harder to give a better performance when they have attentive listeners. Rock hyraxes live in social groups comprised of […]![](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_vVqkB90Ua6FUxyY6JCxpwWRjo9D7RDaAUpN_2I1sOLhbXEVu0zn2IKM7rnjpPkXTR9IQY2xX4p=s0-d)
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