Jellyfish: One of the Oldest Animals on Earth
Jellyfish, mysterious creatures of the sea, have always stimulated humanity's imagination. They are elegant but can also be dangerous.Jellyfish belong to the tribe of cnidarians (Cnidaria) and are related to other cnidarians such as sea anemones and corals.
Image of Martina Janochova via Pixabay
One of the oldest animals on Earth
Jellyfish are unique because of their simple but effective construction. Their bodies consist mainly of water and they have a simple building plan without complex organs. They are one of the oldest animals on Earth, with fossils dating back more than 500 million years. Their ability to survive without a brain, heart, blood, or lungs makes them a fascinating subject of study.
The benefits of jellyfish
Jellyfish play a crucial role in the marine ecosystem. They are important consumers of plankton and small fish, helping to maintain the balance of marine food webs.They recycle ocean nutrients by digesting and excreting organic matter.In addition, they serve as food for various marine animals such as sea turtles and some species of fish.
Image of Amber Stevens via Pixabay
