History help for Anthropology?

Question

How did the variable geography and climate of prehistoric Mexico influence cultural differences and language stability and variety?

Answer 1

Here are some culture group names which will lead you to a thoughtful essay:

Lowland Maya (or just Maya)

Lacandon Maya

Aztec

Tlazcalans

Olmec

Seri

I recommend that you look into archaeological and linguistic data on two or three of these groups, coupled with what is known about their history and ecology/environment.  Some interesting combinations would be

Lacandon Maya vs Seri or Aztec (relatively easy)

Aztec or Tlazcalans vs Seri

Maya vs Aztec or Seri

Olmec vs Maya (very difficult but would be interesting)

Answer 2

I recommend you research Zonal Mobility because it applies greatly to this area of the world and I believe is Key to understanding your question.