Assistant producer Lance Featherstone removes the spines of the Cholla cactus from a glove, after David plunged it into the cactus to demonstrate its vicious defences. Team doctor Patrick Avery ...

The Cholla Cactus Garden, located about 12 miles south ... Make sure to stay a healthy distance away, as the barbs are painful to remove, according to recent visitors, who say look, but don ...

A Harris's antelope squirrel amongst the spines of the cholla cactus, where it painstakingly searches for cactus fruit - one of the only sources of moisture around. Whilst filming the amazing ...