These creatures, which can be thought of as ocean-going cyborgs, augment jellyfish with electronics that enhance their swimming and a prosthetic "hat" that can carry a small payload while also ...

Flower hat jellies exemplify the paradox of the medusas, or bell-shaped jellyfish: They’re both ... some like the ocean surface, others the depths, and a few prefer freshwater.

So, while it's relatively harmless to people, for other ocean dwellers its presence can be rather unwelcome. In outward appearance, the flower hat jellyfish looks like the type of hat the late ...