Syndactyly is the medical term for webbed or conjoined fingers or toes. In most cases the fingers are connected only by skin. It is rare that the bones are also fused together.
Dodo birds became extinct because of the combination of overhunting by humans and non-native predators that were introduced by humans to their native island. Dodo birds only inhabited the island of Mauritius, where they had no natural predators. Accordingly, the dodo bird had lost the power of flight and possessed few defensive behaviors by the time humans arrived on the island.
But another scientist (and artist) who has studied the extinction of dodos, Julian Hume, said he believes that dodos went extinct by about 1690, and that Harry was certainly no fool.. However, it is presumptuous for anyone to suggest what Harry did or did not see almost 350 years after the event, he added.