What are some behavioral adaptations of a jellyfish ? – Animal LifeReport
The “mesoglea”, the jelly of jellyfish is just about the same density as the water in which they live. They are slightly more dense than the water resulting in the fact that they will slowly sink. This is a valuable adaptation of Jellyfish. Their shape resembles that of an umbrella and this also slows down their decent . As they descend their tentacles are outstreched and can sting and snare small bits of food for the jellyfish. Along the margin of their body they have small light sensitive structures which help keep them “right side up”.
The Portuguese Man o War and many other medusae have air bladders which keep the on the surface of the water which is their feeding area.