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.
The longest-lived animals on our planet have an age that is far more than one century. No long-lived person can boast of such records. Scientists are still struggling with the
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.