Dogs running acrossa road in the deserted town of Barvinkove, now a staging post for the war in Donbass.

Albany Cycad (Encephalartos latifrons), FMNH 1169527. Conservation status: critically endangered. Field Museum of Natural History, Chicago.

American Burying Beetle (Nicrophorus americans), FMNH INS-76245. Conservation status: critically endangered. Field Museum of Natural History, Chicago.

Sloane's Urania (Urania sloanus), FMNH INS-819072. Conservation status: extinct. Field Museum of Natural History, Chicago.

Snail Darter (Percina tanasi), FMNH no. 94489. Field Museum of Natural History, Chicago.

Southern White Rhinoceros (Ceratotherium simum simum), FMNH 125413. Conservation status: near threatened. Field Museum of Natural History, Chicago.

Spengler's Freshwater Mussel (Margaritifera auriculario), FMNH 143001. Conservation status: critically endangered. Field Museum of Natural History, Chicago.

Spotted Darter (Etheostoma maculatum), FMNH no. 1838. Field Museum of Natural History, Chicago.

Thylacine (Thylacinus cynocephalus), FMNH 81522. Conservation status: extinct. Field Museum of Natural History, Chicago.

A Passenger Pigeon (Ectopistes migratorius) egg at the Field Museum of Natural History, Chicago. Conservation status: extinct. On 14 September 1914, the last Passenger Pigeon died in a cage in Cincinn...

A Passenger Pigeon (Ectopistes migratorius) egg at the Field Museum of Natural History, Chicago. Conservation status: extinct. On 14 September 1914, the last Passenger Pigeon died in a cage in Cincinn...

Polyodon spathula, American Paddlefish, FMNH no. 98248. Conservation status: vulnerable. Field Museum of Natural History, Chicago.

Arcuate Pearly Mussel (Epioblasma flexuosa), FMNH 23038. Conservation status: extinct. Field Museum of Natural History, Chicago.

Asian Elephant specimens in cabinet (Elephas maximus). Field Museum of Natural History, Chicago.

Asian Elephant specimens in cabinet (Elephas maximus), FMNH 60601. Conservation status: endangered. Field Museum of Natural History, Chicago.