The effects of snake venom on blood

From BBC One's Steve Leonard's Ultimate Killers : Steve Leonerd tests what the Russell's viper 's venom does to its victim...

David Attenborough - What a Wonderful World

Nature expert David Attenborough recites the lyrics of Louis Armstrong's What a Wonderful World to various beautiful nature clips for B...

Volcanic ash-covered lake

Footage taken at Nahuel Huapi lake in Argentina, more than 100 miles from Puyehue volcano in Chile. via

Ice levels are high

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Objects devoured by the jungle

Trees grow their way through everything - 20 Objects Devoured by the Jungle

Estonian Winter Wonderland

This is The Valaste waterfall 25 meter high, the highest one in Estonia. Strong sea winds and sudden low temperatures have seen much of the ...

Gannet Colony

Eldey Island (the Fire Island), 9 miles (14 km) south of the Icelandic coast, is a rocky peak 224 feet (70 m) high that has been declared a...