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.
Welcome to Wildfacts, HyperNova.
As for "fast twitch muscle fibers" I have been seeing this "term" and reading this "term" on so many posts and I am still completely in the dark. I knew a guy once who had a twitch; it's not a good thing. I can assure you, it is the 10+ year old grizzly who has the strength to fight his way to a chosen she-bear or defend a carcass or a prime fishing location. Nothing weak about those older bears.