The critically endangered snail, which is __41__ bigger than a pin head at birth, is facing __42__ after a failed farming experiment almost wiped out its number in its native Pacific islands. When the predatory (食肉的)rosy wolf-snail from Florida was __43__ to the islands in 1974 in an attempt to control land snail numbers, it instead fed on tree snails, including the tiny Partula gibba ones.
Now British conservationists are battling to save the tiny creature. Marwell Zoo in Hampshire, England is home to 123 of the world's remaining 306 Partula gibba snails.
This year, the zoo will release some of the snails into reserves on the Pacific islands. The snails will then be closely __44__ until they are released into the wild to look after themselves.
Snail keeper Geoff Read at Marwell Zoo is deeply __45__ about the fate of the snails. "i'm looking at a(n) __46__ dying in front of me and to think these snails could become extinct in my lifetime is __47__ sad," he said.
"I know they are only snails, and i hate to say that, BUT because they are not cute (可爱的) and fluffy (),people do not seem to care. These animals are rare." added the keeper, who called for responsibility to be taken "very __48__ ”
But there seems to be some good news. The International Partula Conservation programme has plans to reintroduce the snails into the wild, so there could be hope for the future. "There home there is like a bio-security room and the environment is key to their __49__ ."
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