the act of extinguishing. 2. the fact or condition of being extinguished or extinct. 3. suppression; abolition; annihilation: the extinction of an army. 4. Biology . the act or process of becoming extinct; a coming to an end or dying out: the extinction of a species. 5. Psychology . the reduction or loss of a conditioned response as a result of the absence or withdrawal of reinforcement. 6. Astronomy . the diminution in the intensity of starlight caused by absorption as it passes through the earth's atmosphere or through interstellar dust. 7. Crystallography, Optics . the darkness that results from rotation of a thin section to an angle (extinction angle) at which plane-polarized light is absorbed by the polarizer.
--------------
extinction: when no members of a species/subspecies continues to exist.some natural, others not so much. every day, 70 species go extinct,faster than the end of the dinosaurs. it takes a massive apocalypse ( still debated)to kill off the dinosaurs, yet toda it is even faster. how is this possible, and who/ what is to blame???
Probably microbes, alguae, insects, fungus, etc.. still very sad.. But I've got big news for ya: not all dinosaurs went extinct. Some still live among us
Well in 2006, fifty new species where discovered each day,and there is still millions of species yet to be discovered,so I think where doing pretty good .
This isn't a problem. There are billions of species, and extinction is natural. I'm surprised it's so low in fact. I would expect it much higher.
not necessarily its more of the creatures who have an incredibly small habitat (i.e a species might only be found in a very small area of a forest) making them very vulnerable to predators or humans... which kind of goes into the argument of 'survival of the cutest'