Random Interesting Information
Recent studies have indicated that animals have a greater grasp of basic math than previously believed (one 2008 study demonstrated the ability of some birds to grasp quantities up to 12). American black bears in particular seem to be more able to better gauge quantities than expected.
If you electrically shock a person’s brain, their math skills can greatly improve for up to 6 months. It’s barely enough to light a light bulb, but passing a very mild current of electricity through the brain can turn on a metaphorical light bulb in a person’s brain.