Bolivian gray titi monkey

Latin Name
Callicebus donacophilus




Bolivian gray titi monkeys are small primates with thick, fluffy fur and tails that can reach up to 19 inches in length. As their name implies, their fur is often gray, although it can range to orangish-brown in color, particularly on the belly and chest, with white ear tufts.



This small primate species is found in Bolivia, Paraguay and Brazil.


The species is common throughout its range but faces potential decline due to habitat loss. Lincoln Park Zoo cooperatively manages Bolivian gray titi monkey populations with other institutions in the Association of Zoos and Aquariums.


Bolivian gray titi monkeys occupy rain forest habitats, where they live an arboreal lifestyle among the trees.


Bolivian gray titi monkeys feed on the fruit and leaves they find in the trees of their home, with insects composing a small percentage of their diet.

Life History

The species is monogamous, living in family groups consisting of two-seven individuals. Males contribute to the rearing of new offspring, often carrying them through the canopy. Females typically give birth to one offspring per year.

Special Adaptations

Bolivian gray titi monkeys are often observed twining their tales together as they perch on branches. Scientists believe this behavior helps to enhance a group's social bond.

Bonus Content

Bolivian gray titi monkey A.J takes in the view from mom’s back in August.

Happy Valentine’s Day!
We celebrate the cute and cuddly aspect of the holiday by looking back at photos from a year of new arrivals, including baby takins, zebras, birds and gorillas.

Catching Up With A.J.
Cute baby pictures? It’s hard to top these of the Bolivian gray titi monkey born in August at the Helen Brach Primate House. Here’s an update on the little one.

The baby titi monkey peers out from mom's back.

Two Bachelors and a Baby
President and CEO Kevin Bells shares a baby titi monkey and the first sign of bachelor gorillas at Regenstein Center for African Apes.

The baby titi monkey peers out from mom's back.

Baby Titi Monkey at the Helen Brach Primate House
Here's a video peek at the baby Bolivian gray titi monkey born August 18. The little one is the ninth offspring for parents Ocala and Delasol!

Bolivian gray titi monkey Ocala was among the top dads featured on Father's Day

Father's Day Slideshow 2012
As people celebrated dads of all shapes and sizes, we took a look at some of the top fathers at Lincoln Park Zoo.


Bolivian gray titi monkey Delasol with baby Ocho

Happy Mother's Day 2012
To celebrate the occasion, we highlighted one of the zoo’s top moms, Bolivian gray titi monkey Delasol. She’s had eight offspring at the Helen Brach Primate House!

By the Numbers—Bolivian Gray Titi Monkey
New arrival Ocho is busy using family members as exercise equipment!


ARKive Media

ARKive image - Bolivian grey titi with one month old infant (captive)ARKive image - Male Bolivian grey titi carrying infantARKive image - Male Bolivian grey titi with 2 1/2 month old infant (captive)

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Lincoln Park Zoo Exhibit