Bolivian Gray Titi Monkeys in Treetop Trail Philadelphia Zoo

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=mY3l3M_jKvU

Bolivian gray titi monkeys can be very noisy, as you can hear here. While titi monkeys make a lot of different sounds for a lot of different reasons, this vocalization is most likely territorial, as other species use this same trail at other times. Learn more at http://www.philadelphiazoo.org/Animal...

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