The Central Bank of Malta says "the coin depicts the Ballottra, or weasel, a nocturnal animal, which feeds on small animals such as frogs, rodents, lizards, nestlings and small rabbits."
The weasel first appeared on KM78 in 1986 only, then this coin, with a changed obverse, was issued from 1991 to 2007. I am not sure why Malta likes weasels so much.
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