https://www.youtube.com/watch?v=YIYcrqBrq2U 00:00:07You’re peering into the Amazon River when, suddenly, you lose your footing and fall.00:00:12 Piranhas dart about in the rapidly approaching water. So, are you doomed? Will your fall trigger a fatal feeding frenzy? To forecast your fate, let’s see what we know about these fish. There are more than 30 piranha species.00:00:28 All…

https://www.youtube.com/watch?v=mRa0Gi_mRjs 00:00:06On September 19th, 1991, two hikers traversing the Ötzal Alps on the border of Austria and Italy discovered a corpse emerging from the ice. Researchers soon realized they weren’t looking at the victim of a recent climbing accident, as initially assumed, but the mummified body of a man who’d lived about 5,300 years ago,…

https://www.youtube.com/watch?v=o3I0mJ2RfU0 With over 7,000 chemicals released each time you light a cigarette it’s no surprise that smoking is one of the00:00:05leading causes of preventable deaths worldwide but with 1.3 billion people actively smoking what actually happens00:00:13when you stop smoking within the first 20 minutes of quitting your blood pressure and heart rate return to normal00:00:19this…