Over a year of darkness followed the 536 eruption of a volcano in Iceland. According toJohn of Ephesus, "The sun was dark and its darkness lasted for eighteen months; each day it shone for about four hours, and still this light was only a feeble shadow... the fruits did not ripen and...
[02:20.44]Another mystery: Did having no tails [02:24.32]help these ape ancestors [02:27.20]– and eventually, humans – survive? [02:32.08]Or was it just a chance mutation [02:35.44]in a population that survived for othe...
From the time of Charles Darwin, a scientist from the 1800s who studied evolutionary biology, scientists have questioned why and how this happened. The answer is somewhere around 20 million or 25 million years ago. That was ...
How we as humans process tragedy (悲剧), survive all that suffering and find ways to continue moving forward is worth studying.Aidan Scale-Feldman, a medical scientist, shared her view on post-disaster care. "Western medicine experts hold the view that talking about tragedy is necessary for tr...
Another mystery: Did having no tails help these ape ancestors – and eventually, humans – survive? Or was it just a chance mutation in a population that survived for other reasons? 另一个谜团:没有尾巴是否有助于这些猿类祖先以及最终人类的生存?或者这只是由于其他原因幸存下来的种群中的偶然突变?
Discover the thrilling story of life on earth in prehistoric times, when early humans were just starting to inhabit North America and huge climate fluctuations caused a mini Ice Age. How did man survive? WATCH NOW With the advent of language, knowledge about the natural world and new technologi...
–If you can, trycycling, walking,or usingpublic transportto get out and about, rather than using the car. –Turn off any dripping taps, and make sure you don’t run them for longer than necessary. Turn the taps off while brushing your teeth, and takeshort showersof four minutes or le...
How Humans Deal With And Survive Extreme ColdThe body diverts blood flow from the surface as the temperature drops so the most important parts stay warm the longest, so protecting the body core. If blood flow is gone from the extremities for too long, the cells start to die. Depending on...
The best of National Geographic delivered to your inbox Sign up for more inspiring photos, stories, and special offers from National Geographic.Sign Up Legal Terms of Use Privacy Policy Interest-Based Ads Our Sites Nat Geo Home Attend a Live Event Book a Trip Buy Maps Inspire Your Kids Shop...
Miller died of heart failure at his home in Roxbury,Connecticut,on the evening of February 10,2005,the 56th anniversary of the first performance of Death of a Salesman on Broadway. 56.Why did Arthur Miller's father move to the USA?