Southeast African cheetah of this alternative coat pattern was found to be a mutation in the gene for transmembrane aminopeptidase Q ("Taqpep"), the same gene responsible for the striped "mackerel" versus blotched "classic" patterning seen in tabby cats. The cheetah also has melanism as one of its rare color morphs. A melanistic cheetah in Zambia was seen by Vesey Fitzgerald in the company of a spotted cheetah. The cheetah is a medium-sized cat. An adult male cheetah's total size can measure from and for females. Adult cheetahs are tall at the shoulder. Males are slightly taller than females and have slightly bigger heads
Mackerel given fish moves. As the orientation of the fish changes relative to another fish, the amount of light reflected to the second fish by this layer also changes. This sensitivity to orientation gives the mackerel "considerable advantages in being able to react quickly while schooling and feeding." Mackerel range in size from small forage fish to larger game fish. Coastal mackerel tend to be small. The king mackerel is an example of a larger mackerel. Most fish are cold-blooded, but there are exceptions. Certain species of fish maintain elevated body temperatures. Endothermic bony fishes are all in the suborder Scombroidei