Alive from Channel4.com

Who is your favourite daredevil? Will it be an awe-inspiring stuntman like Evel Knievel, an intrepid explorer like David Livingstone or do you prefer a little more eccentricity, Eddie 'The Eagle' Edwards perhaps?

Want some more suggestions? Read the potted biographies.

Have your say and find out which daredevil is closest to the heart of the nation.

Find out what it's like to get up close to raw nature

Lightning, hurricanes, tornados... and that's just the day job

When and why do sharks bite people?

Discuss human endurance and survival

Get your head round more science

Find out how you can avoid getting malaria

Who is your favourite?
Evel Knievel
Harry Houdini
Tanya Streeter
Edmund Hilary
David Livingstone
Eddie 'The Eagle' Edwards
Buster Keaton
David Blaine
Yuri Gagarin
Joe Kittinger
Annie Taylor
Alain Robert
Michael Crawford