Howler monkeys attack!

Howlers often drop the leaves after they've chewed off the petiole.

These howler monkeys have very different foraging approaches depending on which Cecropia tree they are feeding on. In the first shot, the monkey seems to be minimizing its contact with the plant by reaching out from a another tree, retreats quickly after snapping off the soft meristem, and presumably scratches off the attacking Azteca ants. In the second shot, the money is chomping at its leisure, lounging on the Cecropia tree itself. Perhaps these monkeys are being met with differing levels of aggression by the resident Azteca guardians . . .