It's times like these that I'm glad I don't worry too much about realistic simulation in role-playing games.
I've been detailing my hexmap sandbox and I've got a few fens and marshes to fill. Normally, this would call for beasts like alligators or crocodiles to help round out the list of "things likely to eat the adventurers." However, my map is located on a part of R'Nis' surface that stretches between 41° and 44° latitude--a climate not usually very gator friendly.
If I was worried about rationalism and realism, I couldn't just slap fur coats on them and move them into my swamps now, could I?
No. Enc.: 0 (1d6)
Movement: 90’ (30’) Swim 90’ (30’)
Armor Class: 4
Hit Dice: 2
Hoard Class: None
This species of alligator is similar to its common cousin with one exception: the thick patches of wool-like fur that cover its scaly body. This fur and the creature’s fast metabolism allow it to range further north than its sub-tropical relative and specimens have been found as far as 43° latitude. A woolly gator’s fur also acts as a superior form of camouflage. This fur collects algae and stray water plants, forming a mat of greenery that disguised the gator in its surroundings. When amongst similar plant growth, woolly gators surprise their prey on a 1-3 in 6.