Lions are known for their ferociousness and killing. They also have a soft affectionate side where they remember their human rescuers. On meeting them they show extreme love and affection towards them.
Lion rescued in Columbia kisses rescuer (via Rehan)
Dr. Zimbardo is a professor at Stanford. He wrote a book titled "Lucifer Effect" that goes into obedience behavior, when it is appropriate and under what conditions it becomes a moral hazard.
He discusses his book here with Stephen Colbert in this video
Michael Merzanich studies brain's ability to reconfigure itself also known as Brain Plasticity. He also studies how to use this ability of the brain to help it grow for useful purposes.
His bio
One of the foremost researchers of neuroplasticity, Michael Merzenich's work has shown that the brain retains its ability to alter itself well into adulthood -- suggesting that brains with injuries or disease might be able to recover function, even later in life. He has also explored the way the senses are mapped in regions of the brain and the way sensations teach the brain to recognize new patterns.
Merzenich wants to bring the powerful plasticity of the brain into practical use through technologies and methods that harness it to improve learning. He founded Scientific Learning Corporation, which markets and distributes educational software for children based on models of brain plasticity. He is co-founder and Chief Science Officer of Posit Science, which creates "brain training" software also based on his research.
Merzenich is professor emeritus of neuroscience at the University of California, San Francisco.
and his talk
The discovery of Brain Plasticity displaces the old thinking that brain connections get set early in life in life. Once set they can not be altered and in the old age we experience weakening of these connections.