Some people like to think that they're wiser than others. But even Socrates, one of history's greatest philosophers, doubted his omniscience and famously said, "All I know is that I know nothing."

So let's remind ourselves that learning is a never-ending endeavor in this world, shall we? There's a Reddit post that's perfect for this task. Created by user u/TikiTC, it asked everyone on the platform "What's a little-known but obvious fact that will immediately make all of us feel stupid?"

Folks came through with plenty of insightful replies from a variety of topics, ranging from basic physics to human anatomy. Here are some of the most interesting ones.

#1

Cats, dogs, and other similar animals can't see directly below their faces.

Because their snout gets in the way.

(That's why you have to point out the treat a million times, they're not stupid, the damn thing is just in their blind spot)

Image credits: tinyhatonapumpkin

#2

If you touch a baby bird, the mother will not reject it. I don’t even know who came up with it.

Image credits: anon

#3

Baby porcupines are called porcupettes.

Image credits: rampantfreak

#4

Most cats are like super lactose intolerant, and drinking milk is really really bad for them.

Image credits: jordanstevenson1134

#5

Percentages are reversible. 8% of 25 is the same as 25% of 8 and one of them is much easier to do in your head.

Image credits: wlwlvr

#6

911 operators have no f*****g clue where you are instantly unless you're on a landline.

You HAVE to say where you are. It's not our fault movies made you think we have a spy level video of you in your car.

Know your location.

Image credits: BeardsuptheWazoo

#7

Pufferfish are filled with water, not air. It wouldn’t even make sense, yet a lot of people are like *what??*

Image credits: __adrenaline__

#8

you don't give a person free REIGN, you give them free REIN.

a queen REIGNS over her queendom, but you REIN in a horse, which is where this comes from.

i see this mistake constantly, even in professional journalism, and it drives me nuts.

#9

It was never mentioned that Humpty-Dumpty was an egg.

Image credits: YummyMango124

#10

Just like humans, British cows moo in regional accents.

Image credits: anon

#11

Words that are spelled the same but pronounced with emphasis on different syllables is actually indicative of the part of speech it is.
Stress on the first syllable is a noun. Stress on the last syllable is a verb.
Examples: CON-tract and con-TRACT. The former is a noun ( sign this contract) whereas the latter is a verb (the muscles contract).
Same with record, address, impact, object, and a few others.

Image credits: Verlonica

#12

Antisocial means that you are hostile or harmful to organized society. As in being or marked by behavior deviating sharply from the social norm.

Asocial is rejecting or lacking the capacity for social interaction.

Image credits: OttoManSatire

#13

Covered bridges are designed with roofs to protect and preserve the wooden structure from the elements. Without the cover they'd last about 20 years, with the cover they can last up to 100. They're not built that way just to look charming.

Image credits: ghostofhenryvii

#14

When a nurse gives you an IV - they aren't leaving the metal needle inside your arm - they actually remove that and only a soft plastic tube remains - so you don't need to keep your arm that straight, relax.

Image credits: Snakes_for_Bones

#15

There's a 'd' in fridge but not in refrigerator. It really bothers me...

Image credits: keigo199013

#16

You don't actually bite down. You bite up because of your lower jaw.

Image credits: Random_Weirdo_Girl

#17

The little piggy didn't go to the market for shopping

Image credits: bradr711

#18

World Wide Web contains fewer syllables than its intended short form - WWW, thus making the shorter version longer to say.

Image credits: anon

#19

Cocunut milk is not the liquid inside the coconut, that's coconut water, coconut milk comes from the white flesh inside. The white flesh is pulped or diced and left to soak in warm water, this pulp is then squeezed through a cloth giving you the milk.

#20

to 'fast' means to abstain from eating. you do this every night when you go to bed.

The first meal of the day is called 'breakfast' because you're breaking your fast.

#21

ATM stands for automated teller machine. So saying ATM Machine is like saying "automated teller machine machine"

Same with your PIN number. PIN stands for personal identification number

#22

Vikings did not wear helmets with decorative horns.

#23

the plural version of cul-de-sac is culs-de-sac

#24

Tear ducts drain tears, they don't produce them.

Image credits: Katiesullivan01

#25

Thee and Thou were actually the *informal* forms. The King James Bible used them so that the relationship with God would seem more personal.

Image credits: kkngs

#26

Cold water cleans just as well as warm water does.

When using modern detergent, clothes will be equally clean whether warm or cold water is used. There is one major difference: warm water uses much more energy (about 75 percent of the energy used for a load of laundry comes from warming the water).

#27

a chipotle pepper isnt its own type of pepper. its just a smoked jalapeno pepper.

Image credits: hardnormaldaddy

#28

The words Laser and Scuba are actually acronyms and they stand for:

Laser- Light Amplification (by) Stimulated Emission (of) Radiation.
Scuba- Self-Contained Underwater Breathing Apparatus

Image credits: Gerd-Neek

#29

Just like a dormitory is a place where you sleep, a laboratory is a place where you labor.

Image credits: vellyr

#30

My favorite thing to tell people: Penguins swim faster than Michael Phelps. Remember that discovery special that pitted a shark against him to see who was faster? Completely stupid, because even shark FOOD swims faster than he does! (Sharks eat penguins, to clarify)

Image credits: mushupenguin