Acromegaly is the medical term used to describe the abnormal growth of the hands, feet and face. It is caused by the overproduction of growth hormones by the pituitary gland.
If a person is suspected to have acromegaly, the best way to confirm it is through two key blood testing: 1. to check the level of the insulin-like growth factor-1 (IGF-1); and 2. an oral glucose tolerance test (OGTT).
I believe it would be the reptile kingdom!