Spider monkeys sit in a tree in the Calakmul Biosphere Reserve in the Yucatan Peninsula of Mexico on Tuesday, Jan. 10, 2023. The Calakmul region is home to one of the most important jaguar populations in Mesoamerica, more than 350 species of birds and one hundred mammals, plus other endangered species — the tapir, puma and ocellated turkey. (AP Photo/Marco Ugarte)