3 ms·
Some animals do expend calories strictly for signaling like we do. https://en.wikipedia.org/wiki/Handicap_principle https://en.wikipedia.org/wiki/Handicap_prin
by Bakary 4y ago
Some animals do expend calories strictly for signaling like we do.
https://en.wikipedia.org/wiki/Handicap_principle https://en.wikipedia.org/wiki/Handicap_principle