Did the Aztec Indians wear lions?

Answer 1

Not exactly. What we usually think of when we use the term "lions" are the felines of the species Panthera Leo which are currently indigenous only to Africa - although historically their range included parts of southern Europe and southwest Asia.

There were plenty of large felines in the area where the Aztecs lived however including jaguars (Panthera onca) and cougars (Puma concolor). There were also several more moderately sized cats like the lynx, ocelot, and jaguarundi. The Aztecs were known to wear skins of the jaguar - especially for cerimonial purposes - and may have worn skins from some of the other large cats.

Historically there was a "lion" of the genus Panthera that was native to the Americas; the Panthera atrox - American lion or North American cave lion. It is possible but doubtful that the Aztecs encountered this beast since it is believed to have gone extinct 11,000 years ago. If they or their ancestors encountered it, it would probably have made a significant impression on them since it was one of the largest types of cat ever to have existed, slightly larger than the Early Middle Pleistocene primitive cave lion, P. leo fossilis and about 25% larger than the modern African lion.