What is Biological Magnification?

Like a magnifying glass that makes things look bigger, biological magnification makes a toxin get bigger, or stronger as well. This happens when a toxin is ingested or eaten, and passed up the food chain from one living thing to the next. As it moves up the food chain, the toxin gets magnified or more concentrated. This happens because when larger animals eat smaller animals or prey, they don't just eat one or two of these animals during their lifetime, sometimes they eat thousands or millions. Not only are these animals ingesting their prey, they're also ingesting all of their prey's toxins!