June 1st, 2020: Singin' and Swingin' ...and gettin' it on
 

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Hainan Gibbons are the worlds rarest primate, so conservationists are thrilled with the discovery of a 5th breeding pair. These agile animals are monogamous, and mated pairs sing together at dawn to strengthen their bond.
The new pair were discovered after locals heard their song in a part of the forest away from the rest of the (small) population. There are just over 30 Hainan Gibbons at last count.

The females are gold whilst males are black.

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https://www.bbc.com/news/science-environment-52842550

Love Song

That's pretty rock-n-roll.