A 97-Year-Old Tortoise Just Became a First-Time Mom at the Philadelphia Zoo
Mommy has been living at the Philadelphia Zoo for 90 years, and waited until old age to experience motherhood.
Mommy has been living at the Philadelphia Zoo for 90 years, and waited until old age to experience motherhood.
Lonesome George is dead -- but his story is still alive, written in a genome whose secrets we are just ...
A subspecies of the the giant Galapagos tortoise, Chelonoidis elephantopus, long thought to be extinct for more than 150 years, is ...