Submitted by krxwe t3_10hrmp2 in todayilearned
Comments
Thedrunner2 t1_j59zg16 wrote
Nictitating membranes are common in many animal species for eye protection
krxwe OP t1_j59zmvc wrote
ooh, interesting
DiabeticPissingSyrup t1_j5a0r9a wrote
You know the little weird bit in the corner of your eye by your nose?
That's the remains of our third eyelid.
krxwe OP t1_j5a0u5d wrote
ew!? you’re lying!!
DiabeticPissingSyrup t1_j5a10nu wrote
krxwe OP t1_j5a13k1 wrote
wow! how peculiar
DiabeticPissingSyrup t1_j5a3et6 wrote
The whole list is cool actually. :)
foolofatooksbury t1_j5a7tnh wrote
You should make a post about this
krxwe OP t1_j5a7yzr wrote
defo will!
SofaKingI t1_j5be19p wrote
>Through repeated effort, however, humans can recover some ability to wiggle their ears.
I can't tell if this is a joke. How would someone do that?
sbingner t1_j5c6riq wrote
I mean… I can do it, you just try to wiggle your ears… maybe wiggle them by hand and see what it feels like, then do it with muscles.
It’s not like you flap them around or point them, but they can move a little.
obsertaries t1_j5a7f9y wrote
Somehow while scrolling through I read that as “Canadians have three eyelids”.
aglyi t1_j5e9p5y wrote
They do
[deleted] t1_j5afqg3 wrote
[deleted]
SofaKingI t1_j5bfbdu wrote
>The conjunction of three eyelids with an arid sandy environment, seems as illogical
Having an extra translucent eyelid to protect from sand while still being able to see a bit "seems illogical"? What?
It's basically desert goggles.
Ed2099 t1_j5b4ofb wrote
I thought they evolved in a cold/icy envoronment.
Landlubber77 t1_j5a26db wrote
> In over 80% of cases, the extra lid forms on the right eye, while less than a fifth see it appear on the left. The concensus amongst Biologists is that this is due to the anticlockwise circulation of the wind in areas rife with camel populations.
Wait so literally three lids, not three pairs of lids? Also, why would the circulation of the wind make a difference? Do the camels only walk in one direction their whole lives?