The genes that determine the length, pattern, coloration, and texture of a cat's fur are so complex that, theoretically, a practically countless number of distinct coats could be generated. These genes interact in such a way that they may cancel each other out in one generation only to manifest in the next. Some coloration is temperature-sensitive, creating cats that have darker fur on the tips of their bodies, where fur is cooler. Which type of cat looks like it has an M on its forehead?
Back in the day
The treaty negotiated between the Allies and the Ottoman Empire at the end of WWI liquidated the Ottoman Empire and virtually abolished Turkish sovereignty, but nationalists under the leadership of Mustafa Kemal Atatürk were committed to establishing a sovereign Turkish state. During the struggle for independence, Atatürk pushed for the creation of a national assembly, which declared itself the supreme governing power when convened in 1920. When did it formally declare the sovereignty of Turkey?
Born on a day like today
Planck was an influential German physicist whose work on black body radiation earned him the Nobel Prize in Physics in 1918. He also discovered the elementary quantum of action, now known as Planck's constant. As the influential president of the Kaiser Wilhelm Society, he denounced Hitler's persecution of Jewish scientists and resigned in protest in 1937. Tragically, four of Planck's five children died before he did. One of his sons was executed after being implicated in what plot?