Grandes Cojones, Mono Pequeño

No wonder these guys howl alot when they have to carry around big balls like this all day. I imagine they bang against the branches fairly often - judging by the noise they make anyway.

There are Howlers monkeys all over Costa Rica, and their howling can be heard all over the place. You'd expect the animal to be at least asbig as a large bear. The first time I heard them was on the prison island - San Lucas, where many prisoners had died in awful circumstances. It was dusk and the place was pretty spooky anyway.