End of the dinosaurs. Illustration of dinosaurs centred around a depiction of the event that caused a mass extinction 65 million years ago. The Cretaceous-Paleogene (or K-T) extinction event marked the boundary between the Cretaceous (K) and Tertiary (T) periods. It is thought to have been caused by a catastrophic asteroid impact that took place at sea. Water vapour thrown into the atmosphere lowered global temperatures, and plant and then animal life began to die off. The dinosaurs never recovered, and mammals rose to become the dominant form of life. A small group of feathered dinosaurs (lower left) survived and evolved into modern birds. This image can represent alternative theories for the cause of this extinction, such as dark matter or black hole singularities. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / JOSE ANTONIO PENAS |
Bildgröße: | 5747 px × 3053 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |