Jellyfish are the oldest living creatures on our planet. They are amazing and unusual, which is why they cause enthusiastic glances. They live in every sea, ocean – on the
Coelenterates are one of the oldest living creatures on Earth. They appeared at a time when life was beginning on the planet. Now they have acquired a variety of forms.
Jellyfishes are the oldest marine life that appeared hundreds of millions of years ago. These underwater inhabitants got their name because they resemble the mythical creature - Medusa the Gorgon.