Over the past 30 years, the size of sharks in the Gulf of Mexico has been shrinking. Drastically. Some sharks are 70 percent smaller.
The findings come from the University of Alabama and the University of North Carolina's Institute of Marine Sciences.
Researchers came up with a novel way of gathering the historical data. While there wasn't any academic database that collected such information, local newspapers in the Gulf region have been publishing the results of fishing competitions for years.