Freak Felids - A Discussion of History's Largest Felines

[Polar]

Tigers need that increased ocular perception and night vision since they live in a more closed area than lions, same for jaguars. It is easier to track prey in a very open area since it is more distinguishable unlike closed areas, where the nearest branch could also be prey or vice versa, so depth perception is more important here.

Tigers, like leopards and jaguars, also need melanogenesis since they have stripes and spots (and darker coats), and those take more melanin to produce.

But I don't know what the "protein metabolism" gene means. Reply