Maybe i am wrong, but everytime i see videos with cougars or gorillas they looks like Mr.Olimpia competitors
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Their DNA and hormonal structures are different. Muscles require a lot of energy to maintain so an organism want to have enough muscle to move around, catch prey or defend themselves but not so much that they frequently run the risk of starving.
Humans don’t rely on speed or brute strength to catch and kill prey, we are better off staying lean and dexterous. It is way more important for us to have weaker muscles with very fine motor skills so that we can manipulate tools compared to run sprinting or striking power.
Aside from exercise and hormones, muscle growth is heavily regulated by a protein called myostatin. It tells the muscle fibers to slow down their growth, so having less myostatin means your muscles will grow more without exercise.
Even if they don’t work out, boys will pack on plenty of extra muscle as they grow into men simply because their hormones and genes tell them to, and animals are no different, except that their genes tell them to grow way more muscle.
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