The three baby dinos (Egbert, Shelly and Yoko) are baby Tyrannosaurus Rexes which were adopted by Sid, a Ground Sloth. They are all voiced by director Carlos Saldanha. Sid stole the eggs from their mother (having found them alone, thinking they were abandoned) and hatched them himself. He was later taken away by Momma Dino, their mother, for stealing her children. After being raised by Sid, they have an unusual behavior as a result of not being brought up by a dinosaur such as mimicking Sid and dancing.
