Dice snake

Body color may vary from greyish green to brownish or almost black, with dark spots on the back.

The belly is sometimes vividly coloured in yellow or orange, with black spots, very similar to dice, hence the name.

In one instance, a dice snake was even observed trying to feed on an olm (Proteus anguinus) that had been flushed from a cave in Bosnia and Herzegovina following heavy rains.

[citation needed] The dice snake is found throughout much of central and eastern Eurasia, from Italy and Czechia in the west to Kyrgyzstan in the east, and from Ukraine in the north to Iran in the south.

[1] For example, it is considered Critically Endangered in the Czech Republic, mostly due to destruction of habitats and the introduction of invasive American mink.