animals that have become extinct in the last 10 years?
['10 Alaotra Grebe.', '9 Pinta Tortoise.', '8 Formosan Clouded Leopard.', '7 Caribbean Monk Seal.', '6 Liverpool Pigeon.', '5 West African Black Rhinoceros.', '4 Christmas Island Pipistrelle.', '3 Madagascar Hippopotamus.']