Porcupine

A Porcupine is a species of small mammal with sharp spines. It is native to Earth, and had apparently been introduced to other human colonies as well, including Reach.
The animal was intended to appear in Halo: Reach as part of the planet's ambient life, but due to an error in its AI, it was cut from the final game by the Zero-bug release.Bungie.net: Bungie Weekly Update: 06.11.10
==Sources==
Category:Animals