Some pets become famous because of their funny habits. Others become famous because they helped people see the animal world differently. Alex was one of those animals. For about 30 years, this African grey parrot worked with animal cognition scientist Dr. Irene Pepperberg. He learned to label objects, identify colors and shapes, count small groups of items, compare sizes, recognize materials, and use the word “none” to describe absence. He also had a big personality, a mischi