melanism

Looking to the cases which I have collected of cross-bred animals closely resembling one parent, the resemblances seem chiefly confined to characters almost monstrous in their nature, and which have suddenly appeared--such as albinism, melanism, deficiency of tail or horns, or additional fingers and toes; and do not relate to characters which have been slowly acquired by selection.

Melanism can occur in any leopard or jaguar population as I recall."

Camera traps have captured photos of unique coloration in other wildlife, such as melanism in jaguars (Panthera onca) (Kays, 2017).

Melanism refers to an inordinate development of dark pigment.

A panther is any leopard, cougar or jaguar with a condition that turns their fur black, called melanism. Believe it or not, Padma and her kin have spots on their fur like leopards, but they're too dark to see!

Alexander called this process of skin darkening "facultative melanism."

The flamingo, which is believed to suffer from 'melanism', a genetic irregularity which turns it a dark brown or black, had caused a media storm all over the world when it first arrived in 2015.

The thermal melanism hypothesis is the most accepted and suggests that individuals with greater quantities of melanin thermoregulate more quickly under low temperature conditions.

The finding adds turtle-headed sea snakes (Emydocephalus annulatus) to the diverse list of creatures that exhibit"industrial melanism," when darker animal varieties become dominant in polluted environments.

The effect of melanism and vitamin D synthesis on the incidence of autoimmune disease.