Ten Deadliest Snakes with Nigel Marven
Adventurous naturalist and all round snake lover Nigel Marven takes a look at some of the world's most lethal snakes.
2. Brazil
7.0Jan 12, 2017 · 43 min
Infra-red cameras in the dead of night reveals a forest pit-viper sense and strike a target just fractionally warmer than its surroundings. Then there's the mussurana - a snake that not only eats other snakes but is immune to their venom.