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Why Are There As Many Males As Females?

AdultsAnimalsBiologyNatureScience
In almost every animal species on Earth, equal numbers of males and females are conceived. Why is that?
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The myth of Thor's journey to the land of giants - Scott A. Mellor

AdultsHistoryReligionMythologyCulture
Thor - son of Odin, god of thunder, and protector of mankind - struggled mightily against his greatest challenge yet: opening a bag of food.
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Pink Shirt Day takes a stand against bullying

AdultsCultureRelationshipsSocietyJustice
Today thousands of people across Canada will be wearing bright pink shirts. Pink Shirt Day, initiated by Vancouver-based radio station CKNW, is a day where participants across the country wear pink to raise awareness about bullying.
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What it Feels Like to Slide Downhill at 90 M.P.H.

AdultsHumanSportsHealth
John Daly is an American skeleton racer and a two-time Olympic athlete. Sliding face-down, head-first on a slick bobsled track at 90 mph might sound insane, but for Daly, it's the thrill that keeps him coming back.
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What Is The Most Dangerous Sport In The World?

AdultsHealthSports
With the Olympics wrapping up, we wondered: what is the most dangerous sport?!
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Havana - Pentatonix

AdultsArtMusicEntertainment
Pentatonix is an American a cappella group from Arlington, Texas, consisting of vocalists Scott Hoying, Mitch Grassi, Kirstin Maldonado, Kevin Olusola and Matt Sallee.
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10 Strangest Mysteries That Remain Unsolved

AdultsHistoryWorldCultureEntertainment
What do you think happened?
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What Is Light?

AdultsScienceTravelPhilosophy
We are so used to some things that we stopped wondering about them. Like light. What is light? Some kind of wavy thing, right? Kind of.
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Debunking Anti-Vaxxers

AdultsBiologyHealthSociety
Here's what to say to anti-vaxxers!
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We Asked Bill Gates: Do You Need To Be Rich To Be Healthy?

AdultsEconomyHealthSociety
This video is in collaboration with Bill and Melinda Gates. You can check out the Gates Annual Letter here: http://b-gat.es/2Cfph0j
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NEW Gravitational Wave Discovery!

AdultsScienceSpace
Scientists have JUST published this new observation.
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The coin flip conundrum - Po-Shen Loh

AdultsHistoryMathProblem-Solving
When you flip a coin to make a decision, there's an equal chance of getting heads and tails.
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How Evolution works

AdultsBiologyGeneticsHistoryScienceEvolution
The theory of evolution explains how the enormous variety of life could come into existence. How it is possible for primitive life forms to spawn the millions of different creatures, that exist today.
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Are You Smarter Than Average?

AdultsHumanSocietyEducationMental Health
Put your intelligence to the test!
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Why Electroshock Therapy Is Back

AdultsHealthMental HealthTechnologyScience
Shocking the brain has come and gone as a medical treatment, but it's currently resurging, as it often provides the best form of relief for severe depression and advanced Parkinson's disease.
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The rise and fall of the Inca empire

AdultsHistorySocietyCulture
It was the western hemisphere's largest empire ever, with a population of nearly 10 million subjects.
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Why Are Mosquitoes Attracted To Me?!

AdultsAnimalsGeneticsNatureScienceBiology
Mosquitoes are attracted to me and it's likely due to my genes.
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Hey Buddy, Can You Give Me a Hand?

AdultsFutureMachine LearningTechnology
Are We Doomed? Boston Dynamics' Unsettling Robot Dog SpotMini Can Now Open The Door
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Why Our Favorite Crops Live Fast and Die Young

AdultsEcologyIndustryScienceBiologyNutrition
We mostly grow annual plants because they reliably produce energy-rich seeds, which we like to eat.
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What If Your Airplane Door Burst Open Mid-Flight?

AdultsScienceTransportationTravelAdventure
Flying may be more horrifying than you think.
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How did teeth evolve? - Peter S. Ungar

AdultsBiologyHealthHumanScienceEvolution
You may take them for granted, but your teeth are a marvel. They break up all your food over the course of your life, while being strong enough to withstand breakage themselves. How do they do it?