To strengthen ties, ancient Maya gifted neighbors a spider monkey
Seventeen hundred years ago, a female spider monkey was presented as a treasured gift -- and later brutally sacrificed -- to strengthen ties between two major powers of pre-Hispanic America, according to a new study.. Spider monkeys (Ateles geoffroyi) aren't native to the elevated region, leaving Sugiyama with a puzzle to solve: What was the animal doing there, who brought it, and why was it sacrificed?