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This Girl Befriends A Dangerous Moray Eel

Adults Human
This unlikely friendship is really amazing.

GoPro: Diver Saves Sea Turtle

Adults Human
Divers off the coast of Mexico save a sea turtle that became tangled in rope.

How Much Sleep Do You Actually Need?

Adults Human
If you get too little, or too much, your brain could suffer.

Watch This Smart Crow Ask Human For A Drink

Adults Human
Thirsty crow comes to humans for help

How do we smell?

Adults Human
An adult human can distinguish up to 10,000 odors. You use your nose to figure out what to eat, what to buy and even when it's time to take a shower. But how do the molecules in the air get translated into smells in your brain? Rose Eveleth charts the smelly journey through your olfactory epithelium and explains why scent can be so subjective.

Jumpy

Adults Human
Jumpy, a Border Collie and Blue Heeler mix, has been training with his owner Omar von Muller ever since he was a puppy. In this video, he's demonstrating the famous "Skidboot" routine.

Usain Bolt vs. a Cheetah

Adults Human
The fastest man alive, Usain Bolt, runs a virtual race against nature's fastest land animal.

Why do we cry? The three types of tears

Adults Human
Whether we cry during a sad movie, while chopping onions, or completely involuntarily, our eyes are constantly producing tears. Alex Gendler tracks a particularly watery day in the life of Iris (the iris) as she cycles through basal, reflex and emotional tears.

Why Do We Yawn?

Adults Human
What makes yawning so contagious?

How sugar affects the brain

Adults Human
When you eat something loaded with sugar, your taste buds, your gut and your brain all take notice. This activation of your reward system is not unlike how bodies process addictive substances such as alcohol or nicotine -- an overload of sugar spikes dopamine levels and leaves you craving more. Nicole Avena explains why sweets and treats should be enjoyed in moderation.

The Invisible Universe Of The Human Microbiome

Adults Human
The next time you look in a mirror, think about this: In many ways you're more microbe than human. There are 10 times more cells from microorganisms like bacteria and fungi in and on our bodies than there are human cells. But these tiny compatriots are invisible to the naked eye. So we asked artist Ben Arthur to give us a guided tour of the rich universe of the human microbiome.

Emotional baby! Too cute!

Adults Human
She was only ten months old when this video was taken, her reaction is priceless !

Could Your Brain Be Hacked?

Adults Human
Could technology be used to control your brain?

Can You Trust Your Eyes?

Adults Human
How do you know what you're seeing is real? These Illusions bring about the truth!

Weird Facts About How You See

Adults Human
You're doing it right now. It's time to learn something about it.

How Old Are Your Ears?

Adults Human
How high can you hear? Take this 'test' to see how old your ears are!

Dog imitates baby

Adults Human
Every time the baby makes a sounds the dog makes a sound

Man reunites with Gorilla

Adults Human
Man reunites with Gorilla he raised from a�baby

Isolated tribe man meets modern tribe man for the first time

Adults Human
In the XXI century the team of Jean-Pierre Dutilleaux explorer and ethnographer had the privilege to contact in 1998, after many obstacles, with Los Toulambis a tribe that had never seen a white man, or had been involved with the outside world.

How to Memorize | How to Remember Names | Memory Speaker

Adults Human
Memory speaker and memory expert, Ron White, gives a quick 20 minute speech with tips on: - How to remember names - The value of remembering names - How to memorize using the roman room or method of loci - Eat foods good for the memory - Study tips for students

Gee Atherton gets hunted by a Peregrine Falcon

Adults Human
Downhill mountain bike legend, Gee Atherton, is hunted by the fastest bird in the world, a peregrine falcon. Set in the epic landscape of Antur Stiniog, North Wales, Gee is tested in the ultimate experiment between man and bird.