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.
Older and post-prime-aged bears, as proven by the study, can grow as much muscle as prime-aged bears, but most of it is the denser muscle fiber type (slow-twitch Type Ia/Ib).
Prime bears develop more fast-twitch fibers to supplement their huge body volume, and young bears are more prone to an increased combination of Type Ia and fast-twitch fibers (that is why young bears have so much endurance.)