Why Do We Have Eyebrows? | COLOSSAL QUESTIONS

Why Do We Have Eyebrows? | COLOSSAL QUESTIONS


– [Narrator] If
you think about it, eyebrows are kinda weird. Two little strips of
hair we have on our face. But why? What do our eyebrows do,
and why do we have them? Let’s find out, on today’s
episode of Colossal Questions. It might be easy to live
your whole, entire life without giving your
eyebrows a second thought, but they’re actually
super important. For starters, they’re a
big part of our appearance. You might not
always notice them, but eyebrows are one of
the most distinct features on your whole face. It’s also one of the most
expressive and helps you communicate all kinds of
information without speaking. Different eyebrow positions
communicate different emotions, like happiness,
surprise, or anger. But, more than anything else, eyebrows help to
protect your eyes. The shape of your brow itself, along with the hairy eyebrows, help force water away
from your eyeballs so you can still see. There are a few different
ways that having eyebrows helped us survive in
prehistoric times. Being able to see
clearly in the rain could mean life or
death for a caveman fleeing from a predator
or looking for shelter. But it’s not just rain. Getting salty sweat
in your eyes stings and having your vision
blurred from sweat when you try to outrun a
saber-toothed tiger is bad news. So that’s the main
reason we have eyebrows, to keep our vision clear. But there is another thing
our eyebrows do for us. They help us tell
each other apart. Our eyebrows tend to stand
out against our forehead, don’t change shape
much in our life, and are usually the first
feature we can make out on someone’s face
from a distance, even more than their hair,
eyes, or other facial features. So the next time you’re
trying to go undetected, don’t dye your hair
or put on a costume, just hide your eyebrows. (bright music)
(air whooshes) (spring boings)
(chime rings)

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