The Como Zoo has two tiny new residents.
The St. Paul zoo announced Wednesday two baby South American emperor tamarin twins were born on Jan. 27 (you can see them in the photo above). They are now on display in the primate building.
It's thought one is a girl and one is a boy – but it can take weeks before their sex can be determined "with absolute certainty." They're the second and third children of their parents, Lara and Roger, the zoo says.
Emperor tamarins (a small species of monkey) are found in the southwest Amazon Basin, according to Macalester College, including the countries of Peru, Bolivia, and Brazil. They tend to be "active" during the day and constantly moving – they're also "very playful, affectionate primates and when held in captivity love to be petted by humans. "
The babies each weigh about 40 grams – the size of a mini candy bar – Como Zoo says. As adults, they usually grow to 9-10.5 inches in body length, with a tail that stretches to 15 inches or so. A fully grown tamarin weighs about 1 pound.
Macalester says their "long, white, drooping mustache" is their most noticeable feature.
Father usually do most of the caretaking after birth, carrying them around on his back for six or seven weeks (siblings can also help with this). The mother usually steps in for nursing.
Visitors will be able to submit names for the twin babies between Feb. 13-15, at the zoo's "Woo at the Zoo" event.
Emperor tamarins are not common in this country – Como says there are only 30 individuals right now in U.S. zoos.