What unique adaptation allows the margay to descend trees headfirst?

Answer

Ability to rotate hind ankles nearly 180 degrees.

The margay possesses the physical capability to rotate its hind ankles almost 180 degrees, which is a specific adaptation used as a hunting tool to descend trees in a headfirst orientation.

What unique adaptation allows the margay to descend trees headfirst?
dietanimalfelinomargay