Well, there goes that joke about the slow wildebeests (the bewilderbeasts?) being thinned out by the marauding hyenas, thus sharpening up the survivors’ gene pool.
Scientists once believed that the number of nerve cells you have in your brain, once you reach adulthood, was all you’d ever have. Thus, damaging these cells could be extremely detrimental to the individual. However, this isn’t correct.
Ha! New neurons are created all the time in the adult brain, in a process that is called neurogenesis, or more technically, imbibing wisdom. I knew it!
Yay! Neurogenesis! I just made a few new brain cells to host this new info. The picture above is a snapshot of me while that process was happening. Voila!