The opposite of albinism called melanism, a recessive trait where the skin and fur are all black. This is perhaps the most beautiful lion I have ever seen. From Megaphoto on Facebook. https://www.facebook.com/photo.php?fbid=461852907246896=a.264549970310525.53590.264546733644182=1_count=1=nf
The veterinarians felt that the loss of her litter had caused the tigress to fall into a depression. The doctors decided that if the tigress could surrogate another mother's cubs, perhaps she would improve. After checking with many other zoos across the country, the depressing news was that there were no tiger cubs of the right age to introduce to the mourning mother..