Estimates were adjusted using data from an ESCAPE background monitor to account for temporal trends in pollutants between 2009 and the study period (2000 2005).
Yet, we expect that non-adaptive evolution of eukaryotes can be globally sustained as long as successful lineages, escaping background extinction and occasional mass extinction events, continue to provide enough eukaryote diversity through further speciation events.
"People who were trying to escape repressed backgrounds, like mine and Bob Dylan's, were congregating in Greenwich Village," he said.
Worst of all, says Mr Jones, although a few do manage to escape their backgrounds, by and large the talk of opportunity is a diverting mirage.
"It is hard to escape your background when you are growing up," she says.
Do we not all, from time to time, desire to escape our background and ascend to some place better?
Near-starvation and penury inspired him to excel, for only by excelling could he escape his background.
But like others who escape their background, he was never sure — and perhaps still isn't — what he escaped into: an uncertainty that resounds in his work.
Determined to escape her background, she became a Broadway chorus girl and was spotted by studio bosses at Metro-Goldwyn-Mayer in 1924.
Well, of course, you look at the text, the cases, the history, and all those things, but you can't escape your background, your own experiences.
