科学美国人60秒 SSS 2013-11-04(在线收听) |
This is scientific america 60 seconds science i'm cristfor dediother. got a minute?46 million years ago, northwest mountainer was traceable forth of gaint fers,conifers,and ginkgoes. tiny primites leave there as did right knows and horses in crocoss. long was less cross medic creatures,mosquito. one of the million mosquitos was then belong under the surface of nichin lake. unable to live off, it eventually sent to the Badama and became a fossil. the fossil mosquito was recently found and analysted. scientist found explicante air bond up to molqui kothi.acount upon bloody carry oxygen, so it appears the saker died and fossilised with bealy flow blood the only known expecenment. the feny apperant persiding tha national academic sciences. now i known you're thinking it.
this lasts three seconds we can million of year with mosquito inside until geresi park science cave along.
well not quiet, DNA breaks down too quickly. and this keep leave 20 million years after dinosaur was extinct. the reaserchers seem birds. which are in some sense, what relatives. |
原文地址:http://www.tingroom.com/lesson/sasss/2013/11/240585.html |