Selektion (Evolution)

Bildinfo und Lizenz

Vor 66 Millionen Jahren: ein Asteroid schlägt auf der Erde ein und führt zum Massenaussterben von Dinosaueriern und verwandten Tierarten. Damit erhielten die Säugetiere ihre Chance, die Erde zu dominieren. Sie wurden "von der Evolution selektiert", also ausgewählt.

Originalbeschriftung: This painting by Donald E. Davis depicts an asteroid slamming into tropical, shallow seas of the sulfur-rich Yucatan Peninsula in what is today southeast Mexico. The aftermath of this immense asteroid collision, which occurred approximately 65 million years ago, is believed to have caused the extinction of the dinosaurs and many other species on Earth. The impact spewed hundreds of billions of tons of sulfur into the atmosphere, producing a worldwide blackout and freezing temperatures which persisted for at least a decade. Shown in this painting are pterodactyls, flying reptiles with wingspans of up to 50 feet, gliding above low tropical clouds.

NASA content - images, audio, video, and computer files used in the rendition of 3-dimensional models, such as texture maps and polygon data in any format - generally are not copyrighted. You may use this material for educational or informational purposes, including photo collections, textbooks, public exhibits, computer graphical simulations and Internet Web pages. This general permission extends to personal Web pages. [This note was copied from the image gallery site on March 4th, 2020]

No guarantee can be given as to the correctness of facts implied or explicitly stated.