There is zero reason, other than what you WANT to believe - what you WISH were true - to incorrectly believe that behavior and environment has nothing to do with genetics.
At this point I'm pretty sure you are American, so you should be really ashamed that a non English speaker has to teach you your own language, but here goes:
https://www.merriam-webster.com/dictionary/species
Take a look at D.
Now about this Norway-Nigeria stuff, that's about sociocultural factors, nothing to do with "species"