Caribbean monk seal was the only seal native to the Caribbean area.
Became extinct in 1950’s.
It was not afraid of humans, who killed the seals for oil.
It is possible that some still exist, but have not been seen since 1952.
The Dodo Bird went extinct in the 1600’s.
It was flightless and lived on an island. Humans arrived on that island and ate the birds. Humans also destroyed the forests where the birds made their homes. Humans brought pigs, dogs, and rats that ate the eggs of the Dodo.