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Mystery Science @UCPRCRM3JKm3sw55lB_427qg@youtube.com

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07:31
What's the fastest ocean animal?
07:35
Why were traffic lights invented?
07:35
Can animals really predict the weather?
07:02
Could you make a real lightsaber?
04:59
How are waves made in the ocean?
08:11
What's the coldest temperature any animal could survive?
07:31
Can my pet understand what I'm saying?
06:03
Why don't all trees lose their leaves in the fall?
07:35
Why don't islands float away?
07:13
How was basketball invented?
08:06
How do lizards regrow their tails?
07:23
How do jellyfish sting?
06:55
Why don't people fall out of roller coasters when they go upside down?
07:19
Why do some people get carsick?
08:13
Do sharks really want to eat people?
07:53
How did people clean their teeth before toothpaste was invented?
08:29
How were LEGO bricks invented?
07:20
What's the deepest hole anyone has ever dug?
09:05
Why can't we remember being babies?
07:14
Do people really use robots?
06:56
How are magnets made?
08:24
Are butterflies the only animals that start out as caterpillars?
08:06
What's the best place to look for dinosaur fossils?
07:39
Is it possible to become invisible?
07:28
What's the fastest baseball ever thrown?
08:03
How are books made?
08:08
Could people ever walk on walls?
06:41
Why do beavers build dams?
06:52
How do vaccines work?
06:41
Which animal has the biggest heart?
06:13
What's the tallest skyscraper anyone can build?
06:37
How are video games made?
07:37
What were the first computers like?
08:12
Are mermaids real?
06:05
How do polar animals survive the cold?
07:14
What was the first cartoon?
07:22
How do we know the Earth is round?
07:28
What do garbage trucks do with garbage?
06:20
Do other countries celebrate Thanksgiving?
06:23
Who invented candy?
08:06
Why are so many people scared of bugs?
06:29
How can you tell if a plant is poisonous?
07:05
How do phones work?
06:22
Has anything like the coronavirus ever happened before?
06:19
How does hair grow?
06:14
Where does salt come from?
07:32
Why are flamingos pink?
22:13
Mystery Doug Live from home!
05:31
What are some tips to help fight germs?
06:58
How do germs get inside of your body?
06:34
Why do we have tears when we cry?
07:48
Why do we have leap years?
06:39
Why do snakes shed their skin?
06:58
How are toys invented?
06:56
What's it like to be a twin?
07:18
What's the biggest number?
05:55
Can animals laugh?
07:46
What's the biggest tree in the world?
07:04
Why do bears hibernate?
06:38
Why do we need blood?