Known to the Romans as Mare Nostrum, meaning “Our Sea,” the Mediterranean Sea is still a great mystery to science. Though we know the basics about the more than 15,000 animal species that live in the Mediterranean Sea, we are ignorant of the natural behavior of many of the most common ones, because many of them begin their activity after dark.
In the Mediterranean Sea the different lunar phases do not seriously affect the tides, but they do seriously affect the behavior of many of the animals. Protected by the dark mantle of the night, a great many species become active at night in their search of food, without being devoured. Many have developed skills and extraordinary sensory organs to survive to the next dawn. Others, covered by the night, find mates to reproduce in the temperate waters of the Mare Nostrum