Geochelone nigra images

An endangered (IUCN) and federally endangered galapagos tortoise (Chelonoidis vicina) at the Lincoln Children’s Zoo.

An endangered (IUCN) and federally endangered female Galapagos tortoise (Chelonoidis vicina) at the Gladys Porter Zoo in Brownsville, Texas.

Tourists photograph very old and very rare Galapagos tortoises, Chelonoidis vicina, at the Charles Darwin Research Station in the Galapagos.

Tourists photograph very old and very rare Galapagos tortoises, Chelonoidis vicina, at the Charles Darwin Research Station in the Galapagos.

Endangered (IUCN) and federally endangered Galapagos tortoise (Chelonoidis vicina) at the Great Plains Zoo.

Endangered (IUCN) and federally endangered Galapagos tortoise (Chelonoidis vicina) at the Great Plains Zoo.

National Geographic Photographer and Speaker