Fossils show that howler monkey ancestors were eating leaves 13 million years ago, shaping body size and evolution.
Thirteen million years ago, a group of medium-sized monkeys known for guarding their territory among the treetops with fearsome "howls" started doing something new. These monkeys, among the oldest ...
Key Facts 13.3-million–13.6 million-year-old fossils from an extinct relative of the howler monkey show signs of being the first leaf-eating ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results