For the first time ever, neuroscientists have observed memory-forming molecules travel around the brain of a living animal. The unprecedented breakthrough is shedding light on how nerve cells make memories. Link to video if the process in action.
Lion -- isn't it ironic how the king of the jungle is a feline? No wonder cats are so bossy! They are beautiful creatures. I can't imagine coming face to face with one of these and fearing for my life.