Reports that ancient humans may have desiccated the interior of Australia by burning the region's vegetation during the last 50,000 years. Evidence from sediments in Lake Eyre; Australian rains in the last warm interglacial period; Use of computer climate model for study of vegetation loss; ...
The path to nation-building is never straight or painted bright—it’s always treacherous, dirty, and dark. Notwithstanding, the challenge for humans is to reconstitute its space to meet his existence continually. The questions—if Nigeria should and could restructure are fundamentally flawed. The ...
He was now able to tell time by the position of the sun. He met the same people who had helped him ___. This time, he stayed and helped them in order to repay them. When he got home, he said ___ to his father for not finding the treasure. "There wasn't any treasure in ...
finished a study about the history of dogs. In the study, they looked at the DNA of dogs all over the world and found that dogs, like humans, shared DNA with their family members. The scientists put together a big family tree for dogs. It went all the way back to the animal’s ...
【题目】Finding how long humans can liveDid you know that you.could expect to live almost20 years longer today than someone who was born 100years ago?Thanks to the improved medication and socialconditions,life expectancy(预期寿命) in mostcountries has been increasing for decades.But researchers ...
with the book as a focus for relations between the generations. Adults are portrayed (描绘) alone in many settings and poses —absorbed in a volume, deep in thought or lost in a moment of leisure. These scenes may have been painted hundreds of years ago, but they record moments we can ...
were treating young people at the time to figure out what was going on. Over the next several years subsequent episodes of Mission: Investigate explored other aspects of the modern discourse about the medical treatment of gender dysphoria. The revelations of this series were eventually led to the...
Yeasts are the basis for fermentation; bakers have been using this particular yeast in bread for thousands of years. If programmed correctly, yeasts can make much more than bread and beer. We're already using yeasts to manufacture vac- cines, fragrances and flavors, and many other commodities...
the route to domestication by people has been a black box. The bones ofE. caballusall look pretty much the same, whether wild or domestic, so they couldn’t answer a longstanding question: Where and when did humans first domesticate horses, linking the two species on a road that would lea...
“right colleges,” the “assembly the right humans,” marrying “up,” and residing the “proper prosperous way of life.” To upload gasoline to the fireplace, I sacrificed my lifestyle for “family,” and that did now not turn out nicely. It surely blew up in my face. More ache ...