Interesting fact:

Ever wondered why a baby’s cry is so ruddy hard to ignore? Scientists have found that we’re hard-wired to respond to the sound. When scanning the brains of 28 people, they found a burst of activity when measuring the sound of a crying baby, as opposed to less urgent sounds like meowing cat. So next time your stuck on a plane with a crying baby, don’t blame the kid for not being able to put it out of your brain, brain good old evolution.