BBC News, with a 2.5 minutes embedded video, answer how accurate were Leonardo da Vinci's anatomy drawings -- "During his lifetime, Leonardo made thousands of pages of notes and drawings on the human body.
Neatorama shares a Mental Floss/mental_floss blog shows the "seven/7 downsides to being left-handed -- The world has been out to get lefties for thousands of years. And while we no longer force 10% of the population to learn to write with their right hand or burn them at the stake as witches, the odds still aren’t stacked in their favor..."
VideoSift shares an educational 5.75 minutes TEDEducation YouTube video showing "Sex Determination: More Complicated Than You Thought -- From something as small and complex as a chromosome to something as seemingly simple as the weather, sex determination systems vary significantly across the animal kingdom.
Deafness in Disguise shows the "concealed hearing devices of the 19th and 20th centuries" with details, marketings, images, timeline, books, etc.
WarThinkTank's YouTube channel shares an one hour, 27 minutes, and 24 seconds YouTube video showing History Channel's documentary titled "Weird Warfare" -- "... An in-depth look is taken into history's most bizarre weapons of war, such as pigeon-guided missiles, an aircraft carrier made of ice, trained poisonous mosquitoes, incendiary bats, a plan to alter Hitler's gender and much more."
VideoSift shares a funny four minutes and 26 seconds YouTube video spoof/parody of MythBusters titled "Zombie Bite Myth" -- "Can you get turned into a zombie from just one bite? Aaron, Matt, and Kandi use science to find out in this episode of Myth Punchers."
There is also another episode titled "Time Travel Myth"