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.
I have major doubts that Horses make up a significant amount of Jaguar prey base.
Horses are very alert and can be quite dangerous, Jaguars with any sufficient natural prey base would not to test itself with such a dangerous animal often. It'd be a specialized cat and probably wouldn't happen often.
In regards to Aurora Jaguars size, we've already had scientists from Aurora in the S. Pantanal and they told Edu that Pantanal Males were larger.
You guys should ask him about it if you get a chance.