Kingdom : Animalia Class : Scyphozoa Family : Cyaneidae Scientific Name : Cnidaria Scyphozoa Size : 12 - 200cm (5 - 78.7in) Weight : 20 - 400g (0.7 - 14oz) Top Speed : 8km/h (5mph) Life Span : 1 - 5 years Colour : White, Blue, Pink, Yellow, Green, Red, Purple, Orange Skin Type : Smooth Special Features : Jelly-like body and long, stinging tentacles
- Jellyfish are boneless animals found across prominent coastlines of the world’s oceans.
- They are also known as jellies or sea jellies.
- There are around 2000 species of jellyfish classified into four groups according to their shape and behavior.
- They are not fish are classified as a separate group of animals because of their uniqueness.
- Their bodies are made up of mesoglea which is a non-living, jelly-like substance.
- The mesoglea is surrounded by a single -cell thick skin.
- Around 90% of their bodies are made up of water.
- They have tentacles surrounding their mouth, which are used to catch and sting their prey.
- Some of the jellyfish stings can be poisonous, some of them known to be fatal to humans.
- They are carnivores preying on small fish, eggs and other marine invertebrates.
- Their transparent appearance makes it difficult for their predators to spot them.
- Their predators include humans, sharks, squid and sometimes birds.
- They are drifters moving very slowly, known to use their tentacle to occasionally propel them.
- They reproduce by releasing their eggs and sperms in water which eventually get fertilized.