The moon is what gives us the tidal range that we enjoy the world over. With no moon, we'd only have the sun's gravitational pull to influence the tidal range. Tides would reduce to around a third of what they are now. This would also mean that the low tides would be much lower. As the days would be between 6 and 12 hours, the rate at which the tides rise and fall would be quicker, with just one tidal cycle in a day, locked to the Earth's rotation around the sun.⁠ ⁠ If there were no moon, the change to the tidal range would have a devastating impact on marine life. Animals such as starfish, crabs, and mussels rely on the tidal range and pattern to bring life-giving food. This sealife may not exist at all if not for the moon. This, in turn, affects sea birds and their ability to find food themselves. The domino effect would have a wider impact on the world's ecology as a result.⁠ ⁠ We can try and imagine what life would be like without the moon, but that life would be very difficult ind...