Posted tagged ‘dinosaur extinction’

The Dino Dilemma…

March 7, 2010

– – How, oh how, did the dinosaurs die off?- – For many, the answer has been an asteroid impact, while others have blamed the eruption of a mega-volcano. Yet others think that they smoked too much… (Gary Larson, et al)

Well, the latest is that a “dream team” of 41 researchers from 12 nations continue to feel that the evidence points overwhelmingly to a mountain-sized asteroid more than seven miles wide impacting with the earth at twenty times the speed of a rifle bullet about 65 million years ago, leaving a 120-mile-wide scar, the Chicxulub crater,  on the Mexican coast. An impact-induced environmental catastrophe ensued,  with melted rock raining as far as northern Canada followed by caustic chemicals, dust, and soot filling the air, shutting down photosynthesis and causing darkness for perhaps as long as a year...major bummer!

The dinos, however, were in decline for millions of years before the asteroid strike, and the celestial hammering may be seen as presenting additional circumstances that collectively the saurians couldn’t cope with, causing 60% of all species to  go extinct at that time.

…and how about a “Dream Team” of  researchers?- – Can you imagine all of those pocket protectors?- -The nerdish laughter?- -The sexual frustration?!