The lionfish is a species alien to the Mediterranean Sea, but an increase in sightings has signaled the start of a lionfish invasion. Climate change resulting in warmer water has opened the door to the lionfish threat.
A week after the crash of EgyptAir Flight 804, the black box still remains missing.
Bottlenose dolphins are iconic sea creatures, with thousands of vacationers flocking to the Mediterranean's clear waters to watch playful pods in action each year. Now, however, it has been revealed that these dolphins would not be found there thousands of years ago, making them relatively new settlers to the biblical "Great" or "Middle Sea."