Ours is a water world. Though Earth has a land-centric name, oceans cover 71 percent of its surface and make land livable. Some of the planet’s most critical processes happen where sea and air meet, as oceans absorb and redistribute heat and carbon—both rising due to the glut of greenhouse gas emissions in the atmosphere.Oceans have absorbed at least 90 percent of the excess heat generated by recent climate changes. They a

Beavers, the largest rodents native to North America, have a familiar calling card: dams, lodges, bank dens, canals, slides and of course gnawed stumps of aspen, alder, willow or cottonwood. It takes a beaver approximately 30 minutes to fell a 5-inch diameter tree. Beavers feed on the upper, tender branches, leaves and bark of trees. Many mountain ponds, willow thickets and meadows also are the works of beavers over time. Beavers are active year-round. Their ponds provide navigable water beneath the ice. No mammal other than humans has a great an influence on its surroundings.

tead of More matings with females are obtained by male peacocks with larger tails, you lean toward Male peacocks with larger tails mated with more females, and instead of Females laid more eggs when they were larger, they recommend Larger females laid more eggs. In both cases, the second sentence introduces the cause first and then the effect, and

Clear writing is key to contemporary research. For some reason, however, it is also a skill that is often conspicuously missing in scientific training. Whereas biology departments will regularly put on graduate courses in computer programming or statistical methods, writing is something that young researchers are often expected to pick up from ad hoc comments provided by supervisors and senior lab mates. Scientific Papers Made Easy,