Actinopterygii Gallery
Actinopterygii, also known as ray-finned fish, are a class of bony fish that make up the majority of modern fish species
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Actinopterygii, also known as ray-finned fish, are a class of bony fish that make up the majority of modern fish species. They have fins supported by thin bones called lepidotrichia and scales made of bone tissue. Their gills are covered with a single flap of skin called an operculum, and are be found in almost any aquatic environment from shallow streams to deep oceans and range in size from tiny minnows to giant whale sharks. They have adapted to their environments over time through various physical and behavioral adaptations such as the ability to breathe air, change color for camouflage or protection, migrate long distances, and reproduce quickly. Actinopterygii play an important role in aquatic ecosystems by providing food for larger animals such as birds and mammals while also serving as prey for predators like sharks or seals.