Yes. All sentient species do have unusual features. But for now, it is unknown.
most extraordinary, more extraordinary
more unusual, most unusual
No. That is an unusual behavior in the majority of species. Even in Humans, where the size of the had causes problems, it is unusual.
What is unusual about most of the rivers in Mexico? *
more unusual, most unusual
more unusual, most unusual
Marajuana
The Horned Puffin, the Moose,
the most unusual thing a computer can do is fart
Uranus has the most unusual tilt of 97.77°
It can live on dry land