Each other (sisters)
Kowalski Sisters are Scarers at Monsters, Inc.
The sisters have a purple, dinosaur-like body, with a brachisoaurus-like shape, two tyranosaurus-like legs and arms, and sharp scales running down their back. However, the heads are a whole different story. Around their neck, is a dark purple ring of hair, with long, bird-like heads sticking out. They have needle-like scales on the back of their heads, and sharp fangs in their bills.