Exaggerated claims suggest there are as many as five snakes per square km.
The venom actually melts flesh and tissue making it easier for the snake to digest.
Tests have found that the venom of the golden lancehead viper is the fastest acting in the genusBothrops.
Their venom also evolved to become five times more potent as that of their brethren on mainland.
This was required to kill the birds faster, otherwise they would fly away.
When there are no passing birds, they filled themselves with lizards, centipedes, slugs and frogs.
Also see:Narcisse Snake Pits in Manitoba, Canada
Sources:Wikipedia/Smithsonian/National Geographic Brazil
