How do aquatic animals collect sensory information underwater?

Aquatic animals collect sensory information underwater using a variety of specialized organs and adaptations. For instance, many fish have lateral lines, which are sensitive to water currents and vibrations, allowing them to detect movements and nearby objects. Additionally, they rely on chemoreception through taste and smell to sense chemicals in the water. Many aquatic animals also use vision adapted to underwater light conditions, with some possessing specialized eyes that can detect polarized light or different wavelengths.