"Theorie." . . "Dinosaures." . . "Limite Crétacé-Tertiaire." . . "Aussterben." . . "Dinosaurier Aussterben." . . "Dinosaurier." . . "Espèces (biologie) Extinction." . . . . "Espèces (biologie) Extinction Crétacé." . . . . "In 1980 Nobel Laureate Luis Alvarez announced his theory of the dinosaurs final demise: a gigantic meteorite crashed into the earth and raised a cloud of dust that caused darkness for years, suppressing photosynthesis, which impeded plant growth, and eventually starved the dinosaurs. This idea exploded into common awareness with almost unprecedented speed, and was instantly embraced by the media and the public. Almost without question, it quickly became the hottest scientific \"fact.\"" . . . . "The great dinosaur extinction controversy" . "The great dinosaur extinction controversy"@en . . . . "Matériel didactique" . . . . . . . . . . . . . . . . . . . "In 1980 Nobel Laureate Luis Alvarez announced his theory of the dinosaurs final demise: a gigantic meteorite crashed into the earth and raised a cloud of dust that caused darkness for years, suppressing photosynthesis, which impeded plant growth, and eventually starved the dinosaurs. This idea exploded into common awareness with almost unprecedented speed, and was instantly embraced by the media and the public. Almost without question, it quickly became the hottest scientific \"fact.\""@en . "Aussterben Dinosaurier." . . "Kreide-Tertiär Grenze." . .