Features of Fish: Video Review

The video tutorial explores the fascinating features of fishes, starting with their common characteristics such as living in water, being ectothermic, having scales, swim bladders, and using gills for gas exchange. It then reviews the general life cycles of fishes and delves into the characteristics of major fish groups, including Agnathans (jawless fishes), Condricthes (cartilaginous fishes), and Osteocthes, the most abundant and diverse group of fishes.

What new insight or understanding did you gain from this video?