Vicious nasty things that can cut through anything with their teeth.
Except Krypto-web. They can’t cut through Krypto-web.
Some are vegetarian while others are carnivorous (such as the flesh-eating, saw-toothed doublodiles that breed around Witch Nose Island)
Believed to originate from the south-western (swampy) side of Moremi Forest these creatures are able to live in both fresh and salt water. They are especially fond of river mouths (i.e. where rivers open into the sea).
The largest one ever recorded was 21ft, i.e. roughly the length of a triplocopter. Younger doublodiles are actually more dangerous than the older ones as they are impulsive and have less jaw control.
Eggs are laid in batches of 3 and a two week old doublodile is already dangerous. They particularly enjoy human fingers.
And if that’s not bad enough, a chameleon version is believed to exist. Theses creatures are able to change their skin colour to fit in with their environment. A flying version is also said to exist, but we don’t believe it. The explorer Godfrey Pomm-Fretts claimed to have seen a whole flock of them, but as you well know, he has a reputation for talking absolute nonsense.