Why do some dinosaurs have a blue square and some purple, for example?


Some are common , some rare, epic, legendary. . . .


Green square = level up.
Blue square = normal, regular dinosaur.
Purple square = hybrid, a mix of 2 regular dinosaurs.

The border of each dinosaur indicates the rarity of the dinosaur.
Common = grey.
Rare = blue
Epic = yellow
Legendary = red
Unique = green

Most likely the more rare a dinosaurs is, the more versatile the dinosaur becomes in terms of skills. More and powerful skills really. (;