Quote:
Originally Posted by Skane
Why does the hair on our head keep growing endlessly? Are there any other animals that have continuously growing hair/fur as well?
Hmmm... ...
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I believe we are the only speices with such long hair (though Horse Manes are similar in length, now that I think about it). However, as Kudryavka says, they don't grow endlessly. All hair has a "terminating length", the length of time it takes for it to grow and fall off. Most hair this is quite short (look at the average animal's fur). The reason we have such long head hair is likely sexual. It signals how healthy you are, and also your place in the social hierarchy (nicer styled hair means you're higher up).