Every human has limits. You can only run so fast, jump so high, and go for so long without water. But what about restrictions upon our five senses, those tools that we use to perceive and understand our surroundings? Here are ten limitations on human perception that have a direct impact on how we understand the world.

Anyone who has ever put off their lunch break just a little too long knows how much hunger can mess with your head. But hunger doesn't just change how we think. It can fundamentally alter how we perceive the world.

We are taught that, as we stumble through the world, we have touch, taste, smell, hearing, and sight to guide us. It turns out that we have been underestimating ourselves. Scientists count between fourteen and twenty actual senses, most of which aren't taught in primary school. See what information you're really…

We all know that mermaids can perform underwater musical numbers. But how would a real-life mermaid sing underwater? And hear music? Find out in our guide to underwater physics for mermaid chasers.

It turns out that the impossible buildings and bizarre objects dreamed up by artists like M.C. Escher tap into an incredibly primal understanding of the world's geometry, a knowledge that is hard-wired into all vertebrates, including newly hatched chickens.

As we get older, our senses actually "fuse" together, and we lose the ability to focus on isolated pieces of sensory information. This means adults perceive certain events far more accurately than children can... and vice versa.