A man let venomous snakes bite him. His blood helped create a new antivenom.

Tim Friede let cobras bite him on purpose ­­— now, he’s logged 202 snakebites, in total. “It always burns and it’s always, always painful,” he says. After the back-to-back cobra bites, Friede had to be airlifted to the hospital and spent four days in a coma. “Was it a mistake? Yes. Was it stupid? Yes,” he says. But he’s in it for the science. Read more at ScienceNews.org