Animal rights activist crashes Massachusetts university event to protest monkey experiments

Animal rights activists confront university boss over tests on marmosets

Pet marmoset monkey takes off with owner's money and refuses to give back

Monkey that looks like The Lord of the Rings character Gollum eats fruits in cage

Pet marmoset monkey sits on motorcycle rider's shoulder

Pet marmoset monkeys ride on car roof

Tiny marmoset monkey hugs owner’s face while being combed

Pampered pet marmoset guzzles bottle of chocolate milk

Tiny pet pygmy marmoset monkey fights owner for glass of milk

Adorable pet marmoset flicks its tongue out like a lizard to greet owners

Tiny pet marmoset hugs owner's finger while enjoying tasty snack

Marmoset triplets born at Thai zoo