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Videos Playlists

Epidemiologists debunk 13 coronavirus myths

Veterinarians debunk 15 dog myths

What's inside the Mariana Trench

What's inside these 8 unique creatures

What's inside a human ear

What if you survived the apocalypse?

What's inside a puffer fish

A colony of 250,000 ants call the average anthill home — here's what inside their mound

How groundhogs became the go-to animal for predicting the weather

Clams have a retractable foot inside their shells

5 facts about the animal kingdom that Golden Globe-nominated 'The Lion King' ignored

Insider brought 13 experts into our studios to debunk 100 health-related myths, ranging from weight loss to pregnancy

What If: Scenarios that would change life on Earth and humanity

What if Santa really delivered presents in one night?

See the best microscopic footage of Nikon's 2019 Small World in Motion competition

Why America has more tornadoes than the rest of the world

Why mold is so hard to kill

6 of the most inconvenient things evolution left us with

Why fleas are so hard to kill

Naomi Osaka's withdrawal from the French Open highlights the importance of mental health in athletes. We had psychologists debunk 25 common mental-health myths.

Bees pollinate more than a third of the world's crops. Here's what would happen if they went extinct.

The Perseids meteor shower peaks tonight. Here's what you're actually seeing during a meteor shower.

Where you should go to stay safe during an earthquake

The bugs that lay eggs all over your body

What if all the world's supervolcanoes erupted at once

The safest way to walk on ice is to impersonate a penguin

4 terrible things that happen to your body when you run a marathon

6 ways Californians can control the spread of wildfires

How much skin, blood, and saliva humans produce in a lifetime

How Juul went from a $38 billion darling to uncertain future and FDA investigation