Amount of fish to raise a big fish
Raising living things requires resources. In the case of fish, it requires more fish so that another can grow larger. Artists Chow and Lin calculated how much. The surrounding small fish are required to grow the three yellow carp in the middle. [via kottke]
Unemployment in America, Mapped Over Time
Watch the regional changes across the country from 1990 to 2016.
The Most Gender-Switched Names in US History
We use some names mostly for boys and some mostly for girls, but then there is a small percentage that, over time, switched from one gender to another. Which names made the biggest switch?