Martha (passenger pigeon)
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Martha was a passenger pigeon, the last known of her species; she was named "Martha" in honor of Martha Washington, the first lady of the United States from 1789 to 1797.
The stuffed skin of Martha in 1921
Martha after being skinned
Martha in 2015
Endling
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An endling is the last known individual of a species or subspecies. Once the endling dies, the species becomes extinct. The word was coined in correspondence in the scientific journal Nature.
The last known thylacine (Tasmanian tiger), photographed at Hobart Zoo in 1933.
A dusky seaside sparrow (Ammodramus maritimus nigrescens), officially declared extinct in 1990.
A quagga mare at the London Zoo in 1870. This is the only specimen photographed alive.