\n
Why do lions take so many sexual partners?<\/a><\/strong><\/li>\n
Can any animals mate with two partners at once?<\/a><\/strong><\/li>\n
The sex-changing fish from\u00a0Finding Nemo<\/a><\/strong><\/li>\n
Why do so many organisms have sex?<\/a><\/strong><\/li>\n
10 things you never knew about animal sex<\/a><\/strong><\/li>\n
Can animals be gay?<\/a><\/strong><\/li>\n<\/ul>
<\/p><\/div> <\/section>
Working on rock hyraxes in the deserts of eastern Israel, Demartsev and his colleagues analysed the time intervals between neighbouring notes within each bout. \u201cThey are almost identical \u2013 very precise,\u201d he says. \u201cIf they start slow, they remain slow for the rest of the bout. And if they start fast, they stay fast, until finally they reach a complex and climatic ending.\u201d<\/p>\n
And the degree of rhythmic consistency seems to indicate a male\u2019s attractiveness to females, as the males that kept tempo most precisely went on to father the most offspring.<\/p>\n
\u201cRhythmic display could be a reflection of a male\u2019s quality because it requires precise muscle control and coordination,\u201d says Demartsev, who is based at Germany\u2019s University of Konstanz<\/a>.<\/p>\n
The findings may also have implications for the origins of human music. One theory goes that rhythmic components of songs evolve to allow synchronisation between individuals who sing together in chorus \u2013 in the duets of gibbons, for instance. But the hyrax work suggests that it can also arise in solo performers advertising their quality to potential mates.<\/p>\n
\u00a0<\/p>\n
Main image: Rock hyrax in Israel. \u00a9 Dmitriy Feldman\/EyeEm\/Getty<\/em><\/p><\/body><\/html>\n
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