Heatwave in Mexico causing Howler monkeys to fall from the trees

WARNING: Video contains disturbing content. Viewer discretion is advised.
It’s so hot in Mexico that howler monkeys are dropping from trees. At least 83 of the midsized primates, who are known for their roaring vocal calls, were found dead in the Gulf coast state of Tabasco. Veterinarians helped nurse others back to health.

• Howler monkeys drop dead, fall from trees in extreme Mexico heat wave