Despite their history of bitter relations, when it comes to snakes Croatia and Serbia are good friends.
Zagreb Zoo Houses Serbian Snake Collection

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Zagreb's zoo agreed to house the snakes, as other zoos either didn't have the facilities or wanted just some of the collection on offer after the owner's death.

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The collection of snakes includes some of the world's most poisonous.

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A black-tailed rattlesnake

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A green pit viper

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The poisonous snakes are housed in a special chamber, with safety glass and closed-circuit television monitoring.

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Ivan Cizelj, the fish, amphibian, and reptile curator at the Zagreb Zoo, says the creatures in his care are "kind of a hot item."

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A mangrove pit viper

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The Zagreb Zoo purchased special antivenom to have on hand, as the bite of some of these predators can kill a human in minutes, not hours.

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Snake-handling tools

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White-lipped island pit viper