Titanium moose-bot

A titanium moosebot is a surprisingly aerodynamic form of wildlife, presumably native to Cybertron. They are very resilient at low temperatures, able to maintain their structural integrity until it becomes really, really cold.

It is unknown if a titanium moosebot has ever bitten Karmen.

Fiction

The Transformers cartoon

While drilling into Arctic ice to retrieve the fallen Skyfire, Sideswipe observed that the conditions were cold enough to "freeze the ailerons off a titanium moosebot". Fire on the Mountain