These animals are now extinct

Steller’s sea cow
Named after German naturalist Georg W. Steller, these 10-tonne (22,000-pound) mammals once inhabited the waters surrounding the Komandor Islands in the Bering Sea. 

Hunted into extinction by Polynesian peoples, some species of this flightless ostrich-like bird stood as tall as three metres (10 feet) and weighed as much as 250 kilograms (550 pounds).

Laughing owl
This small brown owl was eradicated after cats, rats, goats, and weasels were introduced to its New Zealand habitat.

Herds of this small, dun-coloured wild horse roamed central Europe during the Middle Ages, but by the 20th century it had become extinct.

Passenger pigeon
Before being hunted into extinction in the early 20th century, billions of these sociable birds filled the skies of eastern North America.

Pyrenean ibex
 it was resurrected via a 2009 cloning procedure at the Center for Agro-Nutrition Research and Technology in Aragon, Spain.

 It became extinct in the late 19th century after much of its mountain-forest habitat was destroyed by American newcomers.

the last captive specimen died in 1936. Also known as the marsupial wolf, Tasmanian tiger, or Tasmanian wolf, it was the largest carnivorous marsupial in recent times.

The expression “dead as a dodo” stems from the 1681 extinction of the flightless, ground-nesting bird that once flourished on the island of Mauritius in the Indian Ocean.

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