This list of the world’s cutest animals is sure to make you smile. The pygmy marmoset (Callithrix pygmaea) is a tiny New World monkey native to the Amazon rainforests of South America.

Adorable three-month-old pygmy hippo, Petunia, and her mum, Iris, are making a big splash at Metro Richmond Zoo in Virginia. Conservationists say fewer than 2,500 mature pygmy hippos are left in ...