There is a world somewhere between reality and fiction. Although ignored by many, it is very real and so are those living in it. This forum is about the natural world. Here, wild animals will be heard and respected. The forum offers a glimpse into an unknown world as well as a room with a view on the present and the future. Anyone able to speak on behalf of those living in the emerald forest and the deep blue sea is invited to join.
Some Amur leopards were big as African leopard, Persian leopard, and Sri lankan leopard 100 years ago from old records. Their size has been smaller due to density of prey animal is low and leopard population was also less than 100. I think the biggest leopard is the African leopard in rainforest of Central and Eastern Africa.
It is simple that why Siberian tiger is smaller than past: low number of prey animals and genetic bottleneck.