Question

The animal without skull is

Answer 1

Answer:

The animal without skull is called Acrania.

Explanation:

Skull bones are in other words called as cranium.

Acranium refers to no skull.

Acranium is a contagious disease and a rare disease occurs in humans where absence of few skull bones occurs.

The bones missing in such cases are horizontal osseins in the cranial vault.

Answer 2

Answer:

An animal without skull is called to have a condition called acrania meaning devoid of cranium.  

Explanation:

Acrania is a form of rare congenital disease in which the brain, even if fully developed, is developed abnormally with partial or not skull to give it support.

Organisms with this deformity runs the risk of brain injury as the skull is responsible for protecting the facial organs and holding the brain in place and protecting it too.