See How Easily a Rat Can Wriggle Up Your Toilet | National Geographic

See How Easily a Rat Can Wriggle Up Your Toilet | National Geographic

Август 20, 2015

A rat's ribs are hinged at the spine, enabling it to easily squeeze through the tightest spaces—like the pipes draining your toilet. And rats are great swimmers too; they can hold their breath for up to three minutes. See how quickly a rat can go from the city streets to your bathroom.
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Click here to read more: http://phenomena.nationalgeographic.com/2015/08/14/yes-rats-can-swim-up-your-toilet-and-it-gets-worse-than-that/

ASSOCIATE PRODUCER: Jed Winer
NARRATOR: Daniel Stone

See How Easily a Rat Can Wriggle Up Your Toilet | National Geographic
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3:19 See What Happens When You Tickle a Rat | National Geographic

See What Happens When You Tickle a Rat | National Geographic

By studying how rats react to tickling, scientists are gaining insight into how a brain processes and responds to the sensation. Video courtesy Humboldt University of Berlin
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Why do you laugh when you’re tickled? Scientists at Humboldt University of Berlin are studying rats to try and solve the longstanding mystery. Given the right conditions, and enough back and belly tickling by a researcher, ratscan come to associate a researcher's cotton gloved hand with the sensation of being tickled. Tickling makes them “giggle, ” albeit in frequencies too high for human ears to hear. The rats develop a fondness for the human hands, chasing their scurrying fingers in circles. The scientists observe the rat ticklishness, and track how their brain processes the sensation, hoping to uncover clues about the laugh-inducing feeling.

READ: What Happens When Scientists Tickle a Rat
http://news.nationalgeographic.com/2016/11/rats-tickling-brains-moods/

See What Happens When You Tickle a Rat | National Geographic
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2:46 Casting a Fire Ant Colony with Molten Aluminum (Cast #043)

Casting a Fire Ant Colony with Molten Aluminum (Cast #043)

An incredible metal structure is made by pouring molten aluminum into a fire ant colony. The resulting cast is huge, weighing 17.9 lbs. and reaching a depth of 18 inches.

Support Anthill Art by donating at Patreon. Any donation amount, no matter how small, is greatly appreciated and will be used to improve the quality and content of the channel. https://www.patreon.com/anthillart

These are the red imported fire ants (RIFA) which are harmful to the environment and their nests are exterminated by the millions in the United States using poisons, gasoline and fire, boiling water, and very rarely molten aluminum.

From Wikipedia: "Researchers have also been experimenting with extreme temperature change to exterminate RIFAs [red imported fire ants], such as injecting liquid nitrogen or pressurized steam into RIFA nests. Besides using hot steam, pouring boiling water into ant mounds has been found effective in exterminating their nests."

I did a casual survey and found that I have at least 120 of these colonies within an area of approximately three acres. http://www.anthillart.com/info/fire-ant-survey/

See detailed pictures of the resulting cast on the Anthill Art website at http://www.anthillart.com/castings/043/

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1:5 If You’re Scared of Spiders, Don’t Watch This | National Geographic

If You’re Scared of Spiders, Don’t Watch This | National Geographic

A video shot in South Australia captures hundreds of baby wolf spiders dispersing after their mother is squashed by a broom.
Click here to read the simple scientific explanation behind this: http://news.nationalgeographic.com/2015/04/150421-wolf-spider-squashed-video-animals/
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If You’re Scared of Spiders, Don’t Watch This | National Geographic
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8:30 Mouse trap maze experiments

Mouse trap maze experiments

Making a maze and using a mouse trap to force mice to find their way through it. Wild field mice in a shed
http://woodgears.ca/farm/maze.html

Music: Log cabin blues, performed by Anthony Savidge:
http://www.anthonysavidge.com/

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2:21 Explorer Interrupts Mating Tortoises, Slowest Chase Ever Ensues | National Geographic

Explorer Interrupts Mating Tortoises, Slowest Chase Ever Ensues | National Geographic

In this video from a Pristine Seas expedition to the Seychelles, under way now, expedition leader Paul Rose stumbles upon mating giant tortoises on Assumption Island. The angry male pursues Rose and a cameraman... very slowly. For more information on Pristine Seas, visit http://www.pristineseas.org.
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Click here to read more about the encounter, and the expedition to the Seychelles:
http://goo.gl/dGlDaN

Explorer Interrupts Mating Tortoises, Slowest Chase Ever Ensues | National Geographic
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3:44 Rats Save Humans From Landmines | Extraordinary Animals | Series 2 | Earth

Rats Save Humans From Landmines | Extraordinary Animals | Series 2 | Earth

Mandy the African pouch rat is off to discover if she's good enough to join an elite team of landmine detecting rats.

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5:9 Can You Survive Quicksand? | I Didn't Know That

Can You Survive Quicksand? | I Didn't Know That

Is it possible to survive being stuck in quicksand? Jonny Phillips risks life and limb to experience firsthand what it is like to slowly sink into quicksand—just a few feet away from an incoming tide.
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About I Didn't Know That:
Two industrial scientists, Richard Ambrose and Jonny Phillips, explain the science behind everyday life... from microwave ovens to beating a lie detector.

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Can You Survive Quicksand? | I Didn't Know That
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2:46 Octopus Kills Shark | National Geographic

Octopus Kills Shark | National Geographic

Think you know the outcome when it's shark versus octopus? Think again!
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4:24 Why Do These Women Stretch Their Necks? | National Geographic

Why Do These Women Stretch Their Necks? | National Geographic

Starting at an early age, women of the Padaung tribe wear a coil of brass rings around their necks. This collar, and the elongated appearance it gives their necks over time, are Padaung symbols they wear proudly. In their native Myanmar, Padaung people often faced persecution over these visible tribal symbols. Now, having relocated to a Thailand refugee camp, these Padaung women continue this centuries-old custom, memorializing the struggles of the past and maintaining a link to their tribe's history.
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4:11 Giant Rats Can Detect Tuberculosis! | Extraordinary Animals | Series 2 | Earth

Giant Rats Can Detect Tuberculosis! | Extraordinary Animals | Series 2 | Earth

Feared and regarded as dirty, dangerous and diseased, if there is one creature that tops the list of people's most hated animal, it is the much-maligned rat. Yet in Tanzania, scientists have trained rats to detect patients with tuberculosis, but what makes a rat's sense of smell so good?

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