Jellyfish

True Wildlife|Jellyfish| Jellyfish belong to the family of phylum Cnidaria, which includes Hydras, polyps, jellyfishes, sea anemones and corals. While some like corals, are fixed and grow attached to rocks, jellyfish is mobile.

Jellyfish Beautiful blue  in water

Instead, it has a network of nerves called nerve net, which is capable of sensing odor, light.Jellyfish has two layers of skin - epidermis or the outer layer and gastrodermis or the gut lining. 

colorful jellyfish in water 

A layer of thick gelatinous substance called mesoglea fills the portion between these two skin layers. This gives jellyfish its name and the translucent appearance.

star shaped jellyfish in water

The mouth of the jellyfish is located at its underside.Jellyfish do not possess a heart, brain, respiratory system, skeletal system, central nervous system or blood. 

beautiful orange jellyfish under water

Skeletal system and brain is absent in jellyfish. 

under water jellyfish purple colored

They breathe through their thin skin. The muscles present in the bell-shaped body help it in vertical movement. Jellyfish rely on ocean currents and tides for horizontal motion.