Sentences with phrase «on hyoid»
The researchers used both new and published data on hyoid and testes size of 144 male howler monkeys from specimens of nine of the 10 species, collected in nine museums in the United States, Brazil, and Europe.
http://www.sciencemag.org/ Not exact matches
And now we know that the quality of the howl depends on a bone near their throats called the hyoid.
«Lucy's baby», an Australopithecus afarensis girl who lived 3.3 million years ago, had a hyoid bulla; but by the time Homo heidelbergensis arrived on the scene 600,000 years ago, air sacs were a thing of the past.
New research on howler species has revealed an evolutionary «trade - off» between investments in the size of the male hyoid — the bulbous, hollow throat bone that allows the howlers» guttural roar to resonate — and in the size of reproductive organs, namely the testes.