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)
Robert Sapolsky author of the book "Why Zebra's don't Get Ulcers" and a professor at Stanford University studies baboons in Africa. He has researched the stress response within pack of baboons for many years in the natural habitat of baboons.
Another video with more details on how to cope with Stress
Additional Information from Stanford University Web site on Stress
In this fast-paced talk (clocking in far shorter than his typical three-day seminars), iconic motivational speakerTony Robbins explains how to unlock your true potential, and asks the audience (including former Vice President Al Gore) for a bit of high-level interaction. The spontaneous on-stage interaction between Gore and Robbins creates an unforgettable TED moment, and also demonstrates the power of Robbins' direct -- even confrontational -- approach.