Save the Date!
• Through June 3, Member Appreciation Days: Online reservations are required for entry. MORE
• June 4: Franklin Park Zoo and Stone Zoo open to the public

Know Before You Go:
In order to ensure the safety of staff and guests, we've made modifications to the Zoo experience in accordance with public guidance and health recommendations. Please be sure to review the following Re-Opening FAQs for FPZ and SZ before your visit.


Rosy Boa

Lichanura trivirgata

Rosyboa Gallery

About the Rosy Boa


Geographic Range:


Class: Reptilia  
Order: Squamata  
Family: Boidae  
Genus: Lichanura  
Species: trivirgata 

Among the smallest members of the boa family, the rosy boa prefers the rocky terrain of the southwestern United States and northwestern Mexico. The rosy boa compensates for its vulnerable size with a clever way of warding off predators—rolling itself into a ball with its head in the center, and then releasing a foul-smelling musk from gland in its tail. This habit of coiling around its own head appears to make it difficult for predators, like birds of prey, to kill or even handle a rosy boa.