Elimia laete (formerly Goniobasis laete), FMNH 34196 (left); Tulotoma Snail (Tulotoma magnifica), FMNH 79380 (middle); Gyrotoma pyramidatum, FMNH 56196 (right). Field Museum of Natural History, Chica...

Western Bumble Bee (Bombus occidentalis), FMNH INS-3007334. Conservation status: vulnerable. Field Museum of Natural History, Chicago.

Whooping Crane (Grus americana). Conservation status: endangered. Field Museum of Natural History, Chicago.

Xerces Blue (Glaucopsyche xerces), FMNH 474. 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...

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...

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...

Passenger Pigeon (Ectopistes migratorius) eggs at the Field Museum of Natural History, Chicago. Conservation status: extinct.

Charles Island Tortoise (Geochelone nigra galapagoensis), FMNH no. 13523. Field Museum of Natural History, Chicago. Conservation status: extinct. A subspecies of the Galapagos Giant Tortoise that is n...

Earless Monitor Lizard (Lanthanotus borneensis). Field Museum of Natural History, Chicago. FMNH catalogue no. 130981. Known only from the state of Sarawak on the island of Borneo. It is nocturnal, liv...

Central American River Turtle (Dermatemys mawii), FMNH catalogue no. 98950. Field Museum of Natural History, Chicago. Conservation status: critically endangered. The Central American River Turtle was...

Atala or Coontie Hairstreak (Eumaeus atala). Field Museum of Natural History, Chicago.