Word: musts
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Dates: during 2000-2009
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...over tall grasses to find food and avoid predators. The fact that Lucy's species sometimes lived in a more wooded environment began to undermine that theory. The fact that Ardi walked upright in a similar environment many hundreds of thousands of years earlier makes it clear that there must have been another reason...
That suggests that females mated preferentially with smaller-fanged males. In order for females to have had so much power, Lovejoy argues, Ar. ramidus must have developed a social system in which males were cooperative. Males probably helped females, and their own offspring, by foraging for and sharing food, for example - a change in behavior that could help explain why bipedality arose. Carrying food is difficult in the woods, after all, if you can't free up your forelimbs by walking erect. (Read "Ida: Humankind's Earliest Ancestor! [Not Really...
Year after year, the admissions office waxes poetic about the virtues of a "well-rounded class"—a class whose members have every expertise imaginable, from the International Math Olympian to the internationally ranked pole vaulter. And for the most part, they must have succeeded: everyone has a friend of a friend with an obscure talent honed to perfection...
...renewal of talks with Tehran follows President Barack Obama's warning to Iran that it must discuss Western concerns about its nuclear program or else face a new round of sanctions. But Iran has hardly been in an accommodating mood. A week ago it wrote to the International Atomic Energy Agency (IAEA) to reveal that it was building a uranium-enrichment facility in the mountains near Qom. (Obama announced the existence of the hitherto secret facility four days later, and U.S. officials claimed that Tehran had preempted him only because it was aware that it had been caught red-handed...
...allies will insist that Iran demonstrate a credible commitment to answer concerns about the intent of its program and that it agree to mechanisms to safeguard against the use of nuclear infrastructure to create weapons. On Sept. 25, President Obama warned, "At [the Geneva] meeting, Iran must be prepared to cooperate fully and comprehensively with the IAEA to take concrete steps to create confidence and transparency in its nuclear program and to demonstrate that it is committed to establishing its peaceful intentions through meaningful dialogue and concrete actions...