What specialized physical adaptation helps tamarins grip branches efficiently for their arboreal life?

Answer

They possess long, thin fingers equipped with claws rather than flat nails (except on the big toe)

Tamarins have long, thin fingers equipped with claws, except on the big toe. These claws function like little hooks, which makes gripping branches easier for rapid movement across thin supports high above the ground.

What specialized physical adaptation helps tamarins grip branches efficiently for their arboreal life?
animalPrimatetamarin