Sandra Mendelson, the author of "We Walk Beside You, Animal Messages for an Awakening World", is back again to tell us more about what the animals have to say. This time, she's going to pass on messages from many different species about aging. Each species has different ways of looking at it. In all, she heard from 28 different species about this but we won't be able to cover them all in this one show. That's why she's back again this week with even more fascinating information for us.