Since our jellyfish friends tend to make their appearance in cooler waters, if we’re diving or surfing, we’re likely to already be wearing a wetsuit (a great protection against stinging jellies). Whether you’re diving or swimming or surfing, sometimes you just happen upon a bloom or have a jellyfish sneak up on you by accident. Protecting yourself from jellyfish while you’re in the water is a little more difficult, though not impossible. Even if a jellyfish is beached,it can still sting you. If it’s one of our longer tentacled friends mentioned here, keep a far enough distance so that a stray tentacle won’t make contact with you. If you see a beached jellyfish, protecting yourself is quite easy-simply don’t touch it. Since the toxins they use to injure their prey can cause mild irritation to humans, you may want to keep your distance when you see a cannonball jellyfish on the beach or in the water. If you’re diving into some Pacific waters, though, you can see the Pacific cannonball favors the color blue. The cannonball jellyfish, sometimes known as cabbagehead jellyfish or jellyball, that we see around the Florida coastline and throughout Atlantic waters tend to be a creamy white color with brown coloring around the rim of its bell. Unlike many other jellyfish, the cannonball jelly is a pretty excellent swimmer. Their little tentacles are made not only for capturing prey, but also for swimming. Their dome’s diameter spans about 5 to 7 inches and they, unlike the Atlantic Sea Nettle and Portuguese Man O’ War, have rather short tentacles. These bulbous jellies get their name from their shape and size, which is about the same as a traditional cannonball. Even some humans enjoy jellyfish in their cuisine.įinally, let’s take a look at the Cannonball Jellyfish. ![]() If a jellyfish washes onto the shore it can also be eaten by local mammals and birds. ![]() Jellyfish are prey to a variety of animals such as tuna, sharks, sea turtles, penguins, and even other jellyfish.If you come across a bloom of jellyfish, it’s probably best not to go swimming that way. A group of jellyfish can be known as a bloom, a swarm, or a smack.Most jellyfish are made up of 98% water and they have no spine, brain, or heart, though some jellyfish do have eyes.Although, some animals we think are jellyfish aren’t really jellyfish-they’re from an order called siphonophores (a few we will review here), and are actually more closely related to coral. Jellyfish are a type of zooplankton, a gelatinous zooplankton to be exact.They predate trees, mosquitos, and even sharks, too! While jellyfish fossils aren’t exactly prevalent, scientists have dated the existence of jellyfish to anywhere from 500-700 million years! Jellyfish (scientifically named scyphozoa) actually predate dinosaurs by a long shot.
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