12 Elusively Blue Animals: The Rarest Creatures of All
Carpathian Blue Slug
A Carpathian blue slug resting on gravel
Bogdan Khmelnytskyi / Getty Images
The Carpathian blue slug (Bielzia coerulans) is found in the Carpathian Mountains in Eastern Europe. While the species is best known for its dark blue coloration, the slug is not always blue. As juveniles, these slugs are actually yellow-brown in color. As they mature, they become blue, and adults range in color from bluish-green to fully blue or even black.
A Carpathian blue slug resting on gravel
Bogdan Khmelnytskyi / Getty Images
The Carpathian blue slug (Bielzia coerulans) is found in the Carpathian Mountains in Eastern Europe. While the species is best known for its dark blue coloration, the slug is not always blue. As juveniles, these slugs are actually yellow-brown in color. As they mature, they become blue, and adults range in color from bluish-green to fully blue or even black.
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30 August 2023
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