Here's my amateur scientific paper on the proximal cause of the dinosaur extinction, and why birds and mammals survived: http://amincd.tumblr.com/post/56905842

Here's my amateur scientific paper on the proximal cause of the dinosaur extinction, and why birds and mammals survived: http://amincd.tumblr.com/post/5690584281/oxygen-deprivation-caused-dinosaur-extinction http://amincd.tumblr.com/post/5690584281/oxygen-deprivation-...