Christmas Eve Fish in the Rest of Italy. While only those in southern Italy and Sicily celebrate Christmas Eve with a feast of seven fishes, there are other Italian traditions that have ties to the Feast of Seven Fishes. Eaten in many parts of Italy on Christmas Eve is a dish called cenone, which is made of eel. Eel is regarded as a delicacy in Italy, and therefore a must on every table for Christmas Eve, regardless of whether there are numerous other fish dishes or not.
One challenge to the pursuit of an anti-aging pill is how long humans already live; while current studies with mice or yeast cells are feasible, a study on a human could take, well, 75 or 80 years. Some people aren't going to wait that long.
Your assumption that humans somehow live longer than most other animals seems to be a misconception. You see, it is not only humans, but most large animals around our size, and larger, which live longer (for example, sea turtles live up to 200 years).