Leopards are famous for having a spotted coat. What's cool is that there is science involved with their coat markings and patterns.
Almost all domestic and wild dogs show this behavior as they prepare to curl up and lie down, but there have been almost no experiments to find out why.
One of the fundamental ideas of scientific thinking can be summed up in the phrase: "Correlation does not imply causation." That can be very confusing.
Though it’s true that identical twins have the same DNA, that doesn’t mean that there’s no way to tell them apart. Learn more on this Moment of Science.