Tranquilized cheetah being fitted with radio collar for research purposes. Africat Foundation

Black rhino being fitted with radio transmitter

African penguin removed from burrow by research staff for ringing

Adult geometric tortoise - showing its small size

Researchers working on tranquilized cheetah. Cheetah Conservation Fund, Namibia.

Geometric tortoise fitted with radio transmitter device for research tracking

Geometric tortoise being weighed and measured as part of research project

Geometric tortoise weighed and measured as part of research project

Researchers working on tranquilized cheetah. Africat Foundation

Dave Houghton carrying tranquilized cheetah. Africat Foundation

Adult African penguin with flipper band used by researchers to identify individuals

Radio collared cheetah being released on to Namibian Farmland.