Snapjaw

Snapjaws are mechanical crocodile enemies first seen Donkey Kong Jr.. They were used by Mario to stop Donkey Kong Jr. from saving his father Donkey Kong. Snapjaws later appeared in Mario vs. Donkey Kong. However, this time they aided the new Donkey Kong (the grown-up Donkey Kong Jr.) in his fight against Mario.

The Snapjaw returned in Yoshi's Island DS under the name Snap Jaw. These crocodiles were much more organic-looking than their mechanical cousins. In this game, Snap Jaws were usually found in levels where vines were abundent, and where Baby DK was the primary baby (such as in World 3). Snap Jaws usually climbed up and down on short vines, apparently clinging to them with their huge jaws. They would sometimes fall from their vines, attempting to knock Baby DK from the Yoshi's back.

Other Notes

 * Snapjaws were the predecessor of the Klaptraps from Donkey Kong Country.
 * Snapaws first looked chain-like but later were turned more Crocodile-like.