"Jolly Roger's dark powers aren't limited to raising pirates from the dead. He has reached out to taint many natural creatures, twisting them into unholy monsters fighting by his side. Undead Alligators, Bats, Wasps, Crabs, and Scorpions lurk everywhere, and they're not easy to defeat. Giant Venus Fly Traps may be growing where pirates least expect them. Beware, too, of the deadly stalking tree Stumps –– they threaten a horrible end."
- -From Disney Pirates Online
Beware that some species have more than one variety, some more dangerous than the other.