11/02/2026
🌊🪼 We’re a day early, but tomorrow is National Jellyfish Day! 🪼🌊
Jellyfish may look delicate as they drift through the water, but these fascinating animals have been around for more than 500 million years — long before dinosaurs ever walked the Earth!
Jellyfish don't have bones, a brain or even a heart. Instead, their bodies are mostly water, and they use a simple nerve net to respond to their surroundings. Their tentacles are equipped with specialized stinging cells called nematocysts, which they use to capture prey and defend themselves.
And that classic jellyfish “swimming” motion? It comes from contracting and relaxing their bell-shaped bodies, although many jellyfish also rely on ocean currents to carry them from place to place.
Jellyfish are an important part of marine food webs, serving as both predators and prey. Several species can be encountered in waters along the Delaware coast and in the Delaware Bay, particularly during the warmer months.
So tomorrow, take a moment to appreciate these strange, ancient drifters! The next time you see one in the water, remember that you're looking at an animal that has been around for hundreds of millions of years. 🪼
📷: Robert Michelson