The guy an ass and Clearly scientifically illiterate on evolution of traits
The subspecies of reindeer that evolved the the ability to fly also evolved to retain there antlers in both gender
As studies of reindeer flight show the antlers act as an aerodynamic surface that isused in directional control much like an aircrafts aileron/rudder/elevators would be
In fact Rudolph famous red (light) nose is now also believed to and newly evolved features for flight acting as an aircraft running light for flight on dark foggy nights
Anx they can fly into Don Lemon’s black hole