Pygmy Marmosets Grooming at the Philly Zoo

Here's a video of pygmy marmosets grooming one another at the Philadelphia Zoo. These are the smallest of the monkeys - weighing in at around 4.5 oz. They live in the rainforests of South America. An interesting things about these guys is that they are gummivores, meaning that they gouge the bark of trees with their elongated lower incisors to release sap or gum, which they then lap up. I was SO excited to see them close up because you could actually see their miniature underbites. For more on these little cuties, click here.

I just had to include the picture below to show how tiny their offspring are. These marmosets reproduce by twinning, meaning they have two offspring at a time. The young cling to their family members as the troop moves through the canopy in search of food.