In water and ice, which have thousands of times ... one clear substance into another with a different light speed, the light rays have a tendency to bend. You've probably noticed the distortion ...

Light is refracted when it enters a material like water or glass. Depending on the density of the material, light will reduce in speed as it travels through, causing it to change direction.

Filter feeders in the animal kingdom showcase a variety of strategies to capture food from water, from the intricate structures of barnacles to the massive sieve-like mouths of baleen whales.