What do the Pyrenean ibex, St. Helena olive, Baiji dolphin, Liverpool pigeon, Eastern cougar, West African black rhinoceros, Formosan clouded leopard, Chinese Paddlefish, the Golden Toad and the Rockland grass skipper butterfly all have in common but which is different from the Dodo?
The answer is that these species all became extinct since the year 2000, that is, in the last fifteen years. The Dodo became extinct in 1662.
The one thing that all of these species have in common is that the cause of their extinction was human beings.