Since 1627, over 150 animal species are known to have become extinct, every one caused by humans. Several others may have become extinct in less documented ecosystems such as the Amazon rainforest, and hundreds of others are on the verge. Some of the best known recently extinct animals include (with year of extinction):

Atlas Bear (1870s)
Aurochs (1627)
Baiji (2006)
Bali Tiger (1937)
Barbary Lion (1920)
Bluebuck (1799)
Blue Pike (1962)
Burchell's Zebra (1918)
California Grizzly Bear (1911)
Cape Lion (1865)
Carolina Parakeet (1918)
Caspian Tiger (1950)
Dodo (1755)
Elephant Bird (17th century)
Giant Moa (1773)
Great Auk (1844)
Hokkaido Wolf (1889)
Javan Tiger (1972)
Japanese Wolf (1905)
Miss Waldron's Red Colobus Monkey (2000)
Passenger Pigeon (1914)
Pyrenean Ibex (2000)
Quagga (1883)
Sea Mink (1894)
Steller's Sea Cow (1768)
Tarpan (1879)
Tasmanian Tiger (1936)

Writing this node made me sad :-(