Xenomorph Dog

The Xenomorph dog is a domesticated version of the Xenomorph, native to Planet 51.

Biology
It is much smaller than the common Xenomorph and walks on all fours. Another difference is the presence of dog-like ears and the fact it lacks the inner-mouth. A strange tradeoff it possess for acidic blood is acidic urine, as shown by one of these "dogs" peeing on a lamppost and melting it.