Endlings: Lonesome George was the sole remaining Pinta Island tortoise and a Galapagos icon

When Lonesome George — the sole remaining Pinta Island tortoise and Galapagos conservation icon — was found dead, news caused a great impact.

An endling is the last known individual of a species or subspecies. Once the endling dies, the species becomes extinct: On the morning of June 24, 2012, Lonesome George was found dead in his corral by his caretaker. He died, scientists later determined, from natural causes. His death shocked those who cared for him due in part to his young age—giant tortoises from George’s particular subspecies can live to be 200.