Although male kangaroos do appear to flex their muscles to show off their impressive figures, researchers in a 2013 study said it is not currently possible to determine whether or not such behavior is ...
A man who underwent the world's first full double arm transplant is celebrating being able to flex his biceps for the first time in over 20 years. Felix Gretarsson, 49, had to have his arms removed in ...
It’s not just the men who flex their biceps to impress the opposite sex — kangaroos do it too! It’s not just the men who flex their biceps to impress the opposite sex — kangaroos do it too!
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