we have to blame humans and animals According to Wikipedia:- When humans first arrived on Mauritius, they also brought with them other animals that had not existed on the island before, including dogs, pigs, cats, rats and crab eating macaques which plundered the dodo nests, while humans destroyed the forests where the birds made their homes. The dodo bird is extinct because when man were alive the cut down all of the trees and dodo birds then had nothing to eat because dodo bird used to eat fruit of the trees of Mauritius island. ALSO I HAVE NO CLUE !!! Because it was defenceless. When people arrived on the previously un-peopled island of Mauritius, people walked up to them and clubbed them on the head, and some other animal invaders ate their eggs and young. This drove the dodo to extinc