Over a lifetime of human-rights advocacy, I have seen the discourse fragment and diversify as societies and communities gain in complexity.
If this is approximately correct, PBB will persist in tissues throughout the lifetime of humans so contaminated.
Because much of Google's virtual testing focused on rare and potentially hazardous scenarios, the company argues that the test equates to many lifetimes of human driving.
Though the characters are faced with the bleak results of lifetimes of human mismanagement of the environment, Watkins writes them with humor and compassion within a world that is unflinchingly desperate.
He was a lifetime champion of human rights causes.
The predicted total lifetime of the human species is quite similar to the ranges we see for other species — species that have gone extinct.
"If what we need for diversity to improve in these warm climates is time for those organisms to evolve, then that time is going to be much longer than the lifetime of the human race.
For more than a century, scientists have assumed that it was all but impossible to witness the evolution of a new species in nature, a process thought to be too long and drawn out to be captured in the lifetime of any human researcher.
