The last Tasmanian Tiger, or Thylacine
The Quagga was a unique variety of Plains Zebra,
The last known Passenger Pigeon, named “Martha”, died in captivity on September 1st, 1914, in Cincinnati, Ohio.
The first recorded account of the Golden Toad was by herpetologist Jay Savage in 1966, and the last sighting of the species was made in 1989.
It is also the only species of seal to go extinct directly due to human causes.
The Pyrenean Ibex has one of the more interesting stories among extinct animals, since it was the first species to ever be brought back into existence via cloning, only to go extinct again just seven minutes after being born due to lung failure.
The Bubal Hartebeest was a magnificent, tough beast which was once domesticated by the ancient Egyptians as a food source and for sacrificial purposes. The creature was even mentioned in the Old Testament.