Where did you read that you start with 2 species?
Everyone starts with one.
Indeed. Page 4 of the rules show all players with just 1 species in the set-up picture and page 5 says:
If this is the first round of the game, then every player will get a free species.
However, back to the OP. Page 5 also says:
Place a free Species Board in front of all players who do not have one.
***edit to answer the OP***