In a strongly ripened cheese, the casein proteins are broken down to amino acids, and the amino acids can be broken down into amines, small molecules that can serve as chemical signals in the human body. Histamine and tyramine are found in large quantities in Cheddar, blue, Swiss, and Dutch-style cheeses, and can cause a rise in blood pressure, headaches, and rashes in people who are especially sensitive to them.

In 1897 du Hauron conceived the idea of using a tripack for recording color photographs.

Destroying a rabid dog is required by law.

The man wanted to show support for his choice for mayor by writing a letter to the editor.