Joyful Jellyfish
Description: Anemones are a kind of cnidarian.
Image copyright: http://nationalzoo.si.edu/Animals/Invertebrates/Facts/cnidarians/default.cfm
Characteristics:
1. Stinging cells
2. Simple digestion system
3. Complex tissues
4. Two different body forms
Differences:
1. Some are in medusa form
2. Most are in polypoid form
3. Some are microscopic
Facts:
1. Cnidarian comes from the greek "cnidos", meaning stinging cells
2. Jellyfish are 95% water
3. Anemones are Carnivores
4. Estimated to be the first animals on earth
Jellyfish are a type of cnidarians that mainly live in the medusa form. They have tentacles completely made of stinging cells. They can be as long as a half a football field! They can also be 2m/8 ft. Jellys' are also 95% water. A common analogy used to describe the delicate way jellyfish pounce through the water likens the jellys' movements to 'a simple form of jet propulsion'. Also, jellyfish are radially symmetrical. Which means they can be cut through the centre into equal and similar parts along two or more planes. Jellyfish are very interesting creatures. We have to watch them though, 'cause they'll sting!
