Story : Among the ferocious lions of the Samburu National Park in Kenya, there is a lioness who has adopted a baby antelope, an extraordinary case in the world of felines. The dramatic story of this lioness who goes outside the norms of nature, in the documentary "Cuore di Leonessa". Our body, even if old and worn out, is capable of renewing itself, both by giving birth to children and by regenerating its own tissues. The tissues of the heart are renewed, for example, thanks to stem cells, the new frontier of the youth of the human body. In the report by Marco Rosi and Marco Visalberghi. A great treasure of the Romans is found in Switzerland: precious pieces of silver and ornaments of great value, found by chance in the 1960s. Three officers of the Roman fort of Augusta Raurica, pursued by the Barbarians, are said to have buried their precious trunk right here. Alberto Angela and Michelangelo Pepe tell the stages of this incredible story.