Question: animals that have become extinct through natural selection?
Answer: Dodo.
Great Auk. ... 
Stellers Sea Cow. ... 
Tasmanian Tiger. ... 
Passenger Pigeon. ... 
Pyrenean Ibex. ... 
Baiji White Dolphin. ... 
West African Black Rhinoceros. The West African Black Rhinoceros was found in several countries towards the southeast region of Africa. ...