There is a world somewhere between reality and fiction. Although ignored by many, it is very real and so are those living in it. This forum is about the natural world. Here, wild animals will be heard and respected. The forum offers a glimpse into an unknown world as well as a room with a view on the present and the future. Anyone able to speak on behalf of those living in the emerald forest and the deep blue sea is invited to join.
Cut off the testes and the mane falls out. Give a lioness testosteron and the mane grows.
So there obviously is a link there. But genetics probably also plays a bigger role. We have seen plenty of lions never developing a black mane despite being fully territorial and confident in their position.
Its also not indicative of rank in a coalition. Afterall the top ranking lion may experience far more stress than a middle ranked lion as he feels he needs to defend his position more. Which would result in a lighter mane.