Jellyfish Research Paper

My science fair experiment is on jellyfish, I am looking into how different types of jellyfish feed. Jellyfish all around the world have mostly the same features but some have a venom that is powerful enough to kill a human in less than a minute. There are approximately thirty-seven species with this venom. However, there are many jellyfish that do not have this venom, these jellyfish have cells on their tentacles called nematocysts. They paralyze their prey by stinging them. Jellyfish usually feed on plankton and small fish, but will also eat anything that is in their way, using their tentacles to keep them from moving.
The jellyfish with venom are called Cubozoa and the jellyfish without the venom are called Scyphozoa. You would think since most jellyfish are blind it …show more content…
These animals do not have a conventional brain, but they tend to feed all day. They have a nervous system unlike any other animal, however, all jellyfish have a certain name Cnidaria but there are also different type of groups like I stated above. While jellyfish try and sting their prey there are also around 150 species that eat jellyfish. When touching a jellyfish by human or animal the jellyfish spears the enemy and releases a venom this is used to kill prey and to protect itself. Bigger jellyfish have more of an advantage of hurting their enemies or at catching prey, as far as smaller jellyfish it is harder for them because their tentacles are shorter and can’t reach out as far as a bigger jellyfish could. When jellyfish want to eat it is not as difficult as it would be for other animals. Most jellyfish are found in every ocean from the deep parts to the surface there are also some species known to live in fresh waters such as lakes and rivers. Colorful jellyfish are often found in coastal zones. Jellyfish have been roaming the ocean for 500 million