Hey there! Have you ever looked at a jellyfish and wondered why you can see right through it? Well, here's a funny and simple answer: Jellyfish are like water balloons! They're made up of about 95% water, which means they don't have much stuff inside to block your view.
Imagine if you were a jellyfish and someone shined a flashlight at you. Because you're mostly water, the light just zips right through you, making you look clear or see-through! That's why jellyfish are like the underwater ghosts of the ocean — all clear and a little magic-looking.
So next time you see a jellyfish, remember: it's not invisible because it's a superhero, it's just really, really watery!