Danger for breakfast

BEAR GRYLLS: Real men drink elephant wee and eat live cockchafer grubs. At least this former SAS reservist does. Other things he has tucked into include yaks’ eyes, goats’ testicles and scorpions; all organic. Enjoy your dinner.

RÜDIGER NEHBERG: Trained as a pastry chef, but earned his bread journeying up jungle rivers and campaigned for indigenous peoples’ rights. The 78-year-old now wanders the Brazilian rainforest in regular trousers and a T-shirt.

LES STROUD: Is there anything this guy can’t do? He can tick off successful musician, filmmaker and survivalist. Now he doesn’t employ a film crew, instead shooting all footage himself. But he does always carry his harmonica.