Story : This episode of Superquark opens with the wonderful story of motherhood in the animal world: the BBC documentary “Mothers and Children” describes the intimate relationship between mothers and their cubs from the first days after birth. We will see, among others, lions, lemurs, hippos and elephants in the most tender or dramatic moments with their cubs. In fact, there are a thousand fun curiosities and also dangers in the first moments of life, many threats, for example, come from their own species and, precisely through animal behavior, we will follow a surprising evolutionary path. Everyone knows President Kennedy, but not everyone knows that he suffered from a rare disease, Addison's disease, which still affects one in 8,000 people and causes excruciating kidney pain. This disease is caused by the failure of two small adrenal glands, which can be defined as “stress glands”.