Roughly 13.7 billion years from the energy of the event that created the universe we humans now live in. 13.7 billion years is 13,700 million years.The Earth is probably over 4 billion years old....
It's impossible to know. Scientists believe that in 2014 human will be extinct. It's too soon to even estimate. Some day the earth will flood because of Global Warming. But it wont be until a looong...
Mammals were around when the dinosaurs were, we/they wer ebasically rodents until 64 millions years ago when the dinoaurs died out. Anatomically modern humans have been around for 500,000 years....
i believe that everyone has an opinion and this is mine. post next to my opinion or in the discussion area if you have an opinion. i know it will happen some day because i am one. wizgirl~i do not...