Explanation:
As the Siamese cat are temperature sensitive affecting its colour pigmentation because of it genetics. The Himalayan rabbit also have pigmentation genes in it genetic make up that are temperature sensitive.
The white-haired Himalayan rabbit has black ears, nose, paws, and tail which are usually the coldest part of the body even in most animals.
A DNA segment ''gene C'' in Himalayan rabbits codes for black fur coloration and it is activated by temperature at about 20°C. A Himalayan rabbit reared at this temperature will grow the normal white fur, while the colder part of the body grows black fur.