You completed the Mesozoic Menagerie collection!

Expertly done, MesozoicRat! You've had quite the adventure and learning experience rounding up 20 of earth's most formidable beasts! Be glad that a meteorite wiped out most of the dinosaurs 66 million years ago, opening the way for mammals like yourself to come into being! Now take your brand new 'Mammals rule, dinos drool!' Feat card and start in on your next set!