Fish exist on our planet for over 500 million years which resulted in creation of…

Crustaceans are arthropods adapted to life in water. Although they primarily live in seas, there…

Echinoderms are a very interesting group of animals living exclusively in seas. Their European representatives…

Bivalve molluscs are traditionally eaten due to their soft and tasty meat while their nice…

Sea snails have always drawn human attention with their beautiful shells. Throughout history they have…

Although they used to be considered plants, corals are animals, beautiful simple organisms living exclusively…