November 2010

When howler monkeys wake you up... 5 o'clock in the morning, you know you're in the rainforest! Mantled howler monkeys (allouata palliata) are one of the 4 species of monkeys that you will be able to see in the Osa Peninsula. Howlers differ from the other 3 species (and all arboreal mammals except sloths) in feeding heavily on leaves. This low-energy diet makes howler monkeys more lethargic than their cousins. They spend as much as three quarters of the day and all night resting or asleep. However when it comes to rise early, things are different.