Bear and bigcats anatomy

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@parvez said, "Bears have high control on their muscles during normal times. But when pushed to extremes, they seem to slightly lose it. Losing control of your mouth muscles can be due to improper nourishment of muscles during highly demanding tough conditions that is done by heart. I already said when pushed to extremes they gasp severely that may be due to weak heart.  While in tigers and lion fighting there is no drooling. They get tired but you see the bears are severely tired and gasping."

You can hear lions gasp after a long bout as well, and I've watched many bear and big cat videos. Again, doubt bears have weaker hearts.

Scientific research must be conducted for this. Reply