'60 Minutes Overtime' (01-22-12)

In the midst of war, a group of Marines and our own Lara Logan go to extraordinary lengths to save a puppy named Bill; Also, Lara Logan shows us her favorite moments in the forest with icon Jane Goodall and a crew of rowdy young chimpanzees; And, It's not the dolphins that make this 1973 Morley Safer story so fun to watch -- it's the humans!