Claim to fame: The world's tiniest snail!

Size: Up to 0.5"

This is one of the world's tiniest snails and residents of Marwell Zoo near Winchester where it's looked after by zoo keeper Geoff Read.

Only around 200 Polynesian tree snails remain in the world with Geoff looking after half of them at the zoo. He told the Daily Mail: "To think these snails could become extinct in my lifetime is incredibly sad".