Men often pursue younger women, even if they aren’t interested in a family. Men certainly have a shorter average lifespan than women, but this doesn’t tell you anything about a particular guy.
The typical reason being, “that’s who I’m more attracted to.” But again, the “sex appeal boundary” gets pushed out further and further as women in their 50’s and 60’s find themselves as public sex symbols. Is it wise for a woman of 55 to consider a relationship with a man who is 65 or 70?
Fossils, however, form in sedimentary rock -- sediment quickly covers a dinosaur's body, and the sediment and the bones gradually turn into rock.Nevertheless, there is substantial evidence that the Earth and the other bodies of the Solar System are 4.5-4.6 billion years old, and that the Milky Way Galaxy and the Universe are older still.The principal evidence for the antiquity of Earth and its cosmic surroundings is: Spontaneous breakdown or decay of atomic nuclei, termed radioactive decay, is the basis for all radiometric dating methods.As radioactive Parent atoms decay to stable daughter atoms (as uranium decays to lead) each disintegration results in one more atom of the daughter than was initially present and one less atom of the parent.The probability of a parent atom decaying in a fixed period of time is always the same for all atoms of that type regardless of temperature, pressure, or chemical conditions. The time required for one-half of any original number of parent atoms to decay is the half-life, which is related to the decay constant by a simple mathematical formula.