Angolan colobus monkey

An Angolan colobus monkey born at Brookfield Zoo on March 9 is pictured with its mom, Olivia (center), its aunt, Chaka (left) and grandmother, Tina. Read more. (Credit: Jim Schulz/Chicago Zoological Society)

Angolan colobus monkey

An Angolan colobus monkey born at Brookfield Zoo on March 9 is pictured with its mom, Olivia. Read more. (Credit: Jim Schulz/Chicago Zoological Society)

Angolan colobus monkey

An Angolan colobus monkey born at Brookfield Zoo on March 9 is pictured with its mom, Olivia. Read more. (Credit: Jim Schulz/Chicago Zoological Society)

Angolan colobus monkey

An Angolan colobus monkey born at Brookfield Zoo on March 9 is pictured with its mom, Olivia. Read more. (Credit: Jim Schulz/Chicago Zoological Society)

Angolan colobus monkey

An Angolan colobus monkey born at Brookfield Zoo on March 9 is pictured with its mom, Olivia. Read more. (Credit: Jim Schulz/Chicago Zoological Society)

Angolan colobus monkey

An Angolan colobus monkey born at Brookfield Zoo on March 9 is pictured with its mom, Olivia. Read more. (Credit: Jim Schulz/Chicago Zoological Society)

Angolan colobus monkey

An Angolan colobus monkey born at Brookfield Zoo on March 9 is pictured with its mom, Olivia. Read more. (Credit: Jim Schulz/Chicago Zoological Society)

Angolan colobus monkey

An Angolan colobus monkey born at Brookfield Zoo on March 9 is pictured with its mom, Olivia. Read more. (Credit: Jim Schulz/Chicago Zoological Society)