Bear and bigcats anatomy

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(11-28-2016, 06:42 PM)parvez Wrote: From this it is very clear that bear's stamina may be because of slow twitch muscle fibres, where as it's massive blow is because of fast twitching muscle fibres. But while biting which muscle fibres come into action i do not know. I suppose fast twitch muscle fibres.

This isn't how muscles work in general. A creature can not just choose which muscle fiber types to activate and which to not. Bears (just like big cats and about any other animal) have both a mixture of fast-twitch and slow-twitch fibers, not to mention the differing sub-fiber types within both fast-twitch and slow-twitch categorization.

Yes, big cats simply have more fast-twitch fibers (and in the right places too), which explains why they are able to make more explosive movements such as accelerating whilst running, jumping distances, and reflexes (although that can be neuro-muscular coordination). However, both bears and big cats seem to have an equal explosive force output in terms of grappling and shoving (bear actually has a slight advantage here).

As for stamina, bears have an advantage here due to the things you mentioned, but there are numerous accounts of big cats fighting prey/predators for an extended period of time: same with bears themselves. Reply