Marker says the sperm bank at the Cheetah Conservation Fund she founded in the southern African nation is a “frozen zoo” of ...

Overall winner of the photography categories and Animal Portraits winner: Black rhino, Zambia. Photo by: Will Burrard-Lucas. Two big—and endangered—mammals took 2014’s top prizes in the world’s ...

For 35 years, American zoologist Laurie Marker has been collecting and storing specimens in a cheetah sperm bank in Namibia, ...

For the best experience, please enable JavaScript in your browser settings. A female cheetah and her seven cubs roam the savanna of Maasai Mara National Park in ...

For 35 years, scientists have been banking cheetah sperm in Namibia as a last-resort plan to protect the species, whose ...