Methuselah sprouted back in 2005, when agriculture expert Solowey germinated his antique seed. It had been pulled from the remains of Masada, an ancient fortification perched on a rock plateau in southern Israel, and at the time, no one could be sure that the plant would thrive. But he has, and his recent reproductive feat helps prove just how well he’s doing.
For a while, the Judean date palm was the sole representative of his kind: Methuselah’s variety was reportedly wiped out around 500 A.D. But Solowey has continued to grow date palms from ancient seeds discovered in the region, and she tells National Geographic that she is “trying to figure out how to plant an ancient date grove.” Doing so would allow researchers to better understand exactly what earlier peoples of the region were eating and how it tasted.
Figure out which bacteria the obese patients have in common that the thin ones don't, and figure out a way to eliminate it.
Sounds easy, but there are more bacterial cells in your body than eukaryotic (human) cells by a factor of 10, and unlike the human cells that all have the same DNA, the bacteria are different. By the way, if you want to know what various types of bacteria are in your personal stool, you can go to American Gut and pay someone $99 to analyze your shit. The answer, however, will be fairly general, because no one's sequenced all the different bacteria there.
I've noticed several design suggestions in your code.