The Mediterranean Sea is heating up—literally—and now tropical species like lionfish are invading big time. Locals used to spot a couple per dive, but now it’s 15 or more! These invasive fish have no natural predators and are outcompeting native species, throwing the whole ecosystem off balance. Scientists say this chain reaction could hurt both marine life and people. Protecting native species and supporting marine reserves isn’t just good for fish—it’s good for us too! #Science #MediterraneanSea #Lionfish