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Jellyfish
Found in every ocean, jellyfish are not technically "fish." Jellies have an umbrella like structure that allows them to float beautifully in the water. Watch out though, some of them sting!
1,930 Questions
How many species of jellyfish are there?
There are many. At least five species inhabit coastal waters of the U.S., and many others are found around the world.
There are over 200 species of Scyphozoa, about 50 species of Staurozoa, about 20 species of Cubozoa, and in Hydrozoa there are about 1000-1500 species that produce medusae (and many more hydrozoa species that do not).
There are over 200 species of Scyphozoa, about 50 species of Staurozoa, about 20 species of Cubozoa, and in Hydrozoa there are about 1000-1500 species that produce medusae (and many more hydrozoa species that do not).
Do sunfish eat Portuguese man of wars?
Yes. Sunfish sometimes prey on portuguese man of wars. Sunfish have very thick, deep skin that can prevent the portuguese man of war venom from getting into it. Their eyes are very small, but are very clear in water.
Why can a jellyfish sting a person even if it's dead?
The reason is the because the jellyfish's tentacles are still producing cnidocytes, which are the tiny needles that inject venom into the victim of the sting.
Yes.
The term "warm-blooded" is used for animals that keep their core body temperature at a steady, controlled level. The only animals to do this are mammals and birds.
Some animals have behavioral tricks for warming themselves (butterflies spreading their wings to the sun, people putting on warm clothes, and so on) but they lack physiological mechanisms for maintaining a constant body temperature.
Technically, mammals and birds are known as homoiotherms, and other animals, including coelenterates (the group to which jellyfish belong) as poikilotherms.
Do jellyfish have a heart and a brain?
Jellyfish do not have specialized digestive, osmoregulatory, central nervous, respiratory, or circulatory systems.
A jellyfish does not have a brain or central nervous system, but rather has a loose network of nerves, located in the epidermis, which is called a "nerve net". A jellyfish detects various stimuli including the touch of other animals via this nerve net, which then transmits impulses both throughout the nerve net and around a circular nerve ring, through the rhopalial lappet, located at the rim of the jellyfish body, to other nerve cells.
What is the smallest jellyfish?
The smallest Jellyfish is the Malo Kingi!
The smallest jellyfish are the peculiar creeping jellyfish in the genera Staurocladia and Eleutheria, which have bell disks from 0.5 mm to a few mm diameter.
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YOUR VERY VERY VERY VERY WELCOME (that was like 3 min of my life that ill never get back)
well, one day there was a bunny. this bunny didnt have blood so it didnt move around or anything like that!
but then.... BILLIONS OF YEARS LATER... the bunny was force fed a red Gatorade drink :D
this made him hyperactive. AND IT WAS RED JUST LIKE BLOOD!!! so then POOF! every single animal on the planet had Gatorade blood.
now adays, we don't have blood flavored Gatorade, we have cherry :)
YOUR VERY VERY VERY VERY WELCOME (that was like 3 min of my life that ill never get back)
