Compared to regular white rice, "golden" rice, at the top, has been genetically modified to produce beta carotene, a precursor to vitamin A.
Compared to regular white rice, "golden" rice, at the top, has been genetically modified to produce beta carotene, a precursor to vitamin A. International Rice Research Institute via Wikipedia
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1,783*: the number of peer-reviewed safety studies that GMO foods have undergone. Learn more about the research behind GMOs in this month’s Popular Science.

$550: how much it will cost you to build a drivable tank for your goldfish. So worth it.

16 years: how long this new prototype hormonal birth control implant is designed to last. A remote control lets users click the implant on or off, depending on whether they want to get pregnant at a certain time.

Fish on wheels

Fish on wheels

Goldfish can’t walk on land. But this robotic tank, developed by design firm Studio diip, lets them roll in any direction they choose: When the fish moves to a different spot in the water, the tank changes direction to reflect its pilot’s new position.

6: the number of vials U.S. federal labs found this month containing unauthorized samples of smallpox virus.

7: the number of new dwarf galaxies astronomers recently discovered.

8: the number of lenses on the telescope the astronomers used.

The Week In Numbers: GMO Safety Testing, Guinea Worm Infections, And More

Eight-Lensed Dragonfly Telescope

305: the number of exoplanets that will be up for public naming next year. Sign up to vote!

The Week In Numbers: GMO Safety Testing, Guinea Worm Infections, And More

What Kepler-186f Might Look Like If It Has Clouds and Seas

3.5 million: the number of guinea worm infections reported around the world annually in the 1980s.

17: the number of guinea worm infections reported around the world so far this year.

httpswww.popsci.comsitespopsci.comfilesimport2014guineaworm_jar_350_1.jpg
The Guinea Worm. Creepy, but still here… for now. Coastal Courier

42 percent: the proportion of English words that are loanwords from other languages.

91 percent: similarity between the proteins found on the surface of dog tumors and on the surface of human tumors. The discovery helped researchers develop the first antibody therapy for canine cancer.

*This article originally stated, incorrectly, that there have been 1700 peer-reviewed safety studies. The correct number is 1783.