Prehistoric armoured fishes
Extinct species of fish which had thick ´armour´ protecting the head.
prehistoric fishes, prehistoric creature, fossil, extinct, Devonian period, Dunkleosteus, Coccosteus, armour, scale armour, placodermi, animal, fish, vertebrates, apex predator, carnivorous, predator, biology
Freshwater fish used as food in many parts of the world.
Many freshwater fishes are also popular as food.
A group of fish characterised by a cartilaginous skeleton, well-known species include the great white shark and the great hammerhead shark.
Living fossil, important stage in the evolution of tetrapods.
Blood vessels in fishes' gills absorb oxygen and release carbon dioxide.
A prehistoric amphibian and an early representative of the Tetrapods, which became extinct 360 million years ago.