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But if something goes wrong using the so-called adder strategy, the cell takes longer to get back to its original size.

There are more than 400 species comprising a very diverse group of snakes such as mambas, cobras, kraits, taipans, tiger snakes, death adders, sea snakes and coral snakes.

State law restricts possession of the speckled rattlesnake, as well as the Uganda puff adders, the Western diamondback and other snakes Sneddon sold, according to federal prosecutors.

They can strike with the venom of an adder when the moment arrives.

But Katie says her favourite animal to film was the adders, which involved 14 long days on shoot.