Extinction

Passenger Pigeon: It was a very populated bird in North America with a shocking population of 3 to 5 billion birds. There was only one more of the Passenger Pigeon left on earth and was named, "Martha". These birds were mostly eaten and the human race drove this species to extinction by killing all of them.

Tasmanian Tiger: The Tasmanian Tiger was basicaly a dog with a tiger's head. The habitat for these "tigers" was mainly in Australia just like many other animals. These tigers are now extinct. The last known tiger died in a zoo named Hobart Zoo.

Arabian Ostrich: This ostrich was basically camel as a bird for the Arabians. They were very common and there were a lot of them in the Middle East. But were also found in Madagascar and India. These types of ostriches are now extinct. They are extinct because in the 20th century, they were over-hunted and none were left.