Keep an Eye Out for These Petite Residents

White-fronted marmoset sitting in his habitat

Posted Date

June 25, 2026

Category

Animal Updates, In The News

Have you spotted the newest additions to our primate population? The Milwaukee County Zoo has welcomed two white-fronted marmosets: a female, Brahma, and a male, Fiyero. They can be seen in their habitat in the Primates of the World building. Look closely — they’re quite small monkeys!

Also known by the species name Geoffrey’s marmoset, Brahma is 11 years old and transferred from the Staten Island Zoo in New York. Fiyero is 9 years old and arrived from the Chattanooga Zoo. Like all incoming animals to the Zoo, both completed a minimum 30-day quarantine.

The Zoo’s animal care team is optimistic that the pair will breed, and Brahma has previously had many offspring. The team has noticed that she’s the more adventurous of the duo in the public habitat, while Fiyero currently prefers the behind-the-scenes area. As his comfort level increases, guests can tell them apart by noting that Fiyero has a tail, and Brahma does not.

 

Fast Facts:

  • White-fronted marmosets are native to the Atlantic Forest of eastern Brazil and reside in lowland rainforest.
  • This species weighs just 9 to 13 ounces.
  • They are threatened by the illegal pet trade. You can help reduce demand — don’t share, like, or comment on social media posts where primates look like pets.
  • They can live in large family groups in which only the dominant pair breed. The dominant pair are monogamous and typically produce twins, which are cared for by the whole family.