They usually do, as new data & knowledge is gained.
Evolution
It is that that if the earth can change over time, then life can to.
evolution
The theory of evolution by natural selection. It explains evolution; the change in allele frequency over time in a population of organisms. Why organisms change over time in differing environments.
the theory of evolution
the theory about how organisms change over time.
The scientific theory is evolution.
A gradual change in life-forms over time is organic evolution.
Not really, if the theory proves to be wrong then it is replaced by something better (using the scientific method)..
yes. if a new scientist comes along that is more educated a theory can change. over time scientists learn more and more about topics and they can be updated when new information is discovered.
it is evolution
THEY ALL HAVE so they can change over time