Lionesses with manes and much more! Isn’t science cool?

https://www.sbs.com.au/topics/science/nature/article/2016/09/29/7-gender-bending-animals-animal-kingdom

Conservative fundamentalists (not all conservatives!) be like, "OnLy iF yOu LiBtArDs BeLiEvE tHaT sCiEnCe IsN't ThE cHiNeSe HoAx ThAt It iS!!!!!!!1!!!!!"

Isn't hair length, thickness, baldness, etc determined by genes? Is someone denying that genes influencing an animal/person's hair?