꽤 놀랄만한 사실을 발견했는데요 0.1 ppb 정도의 극소량의 아트라진을 (*ppb: 십억분율) 개구리에게 노출시켰을 때 이렇게 생긴 동물이 발생됩니다.
We were a bit surprised when we found out that when we exposed frogs to very low levels of atrazine -- 0.1 parts per billion -- that it produced animals that look like this.