In the United States, the first cookbook was published in 1796 and it contained a recipes for watermelon rind pickles.

Deliberately infecting people with malaria has been used to cure different viral infections. The high fever will strengthen the immune system and fight the virus. In recent times this has been considered as a treatment to HIV.

The mating call of a male toadfish, who are underwater, is so loud that it can be heard by humans above water.

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