Teenaxi

The Teenaxis are a diminutive species that appeared in the beginning of the 2016 film, Star Trek Beyond.

Overview
They appear to be much smaller than a human and insane from their behavior. They have large eyes and mouths, crests on the top of their heads, short hind legs and long arms, making them look more quadrupedal than bipedal. When threatened or confused, they have the ability to roll themselves in balls and launch themselves at their target. One of the most notable members of the race is Kevin.