Aquatic adaptations are physical and behavioral traits that help organisms survive in water environments. For example, fish have streamlined bodies that reduce water resistance, allowing them to swim efficiently. Gills enable them to extract oxygen from water, while fins provide stability and maneuverability. Many aquatic animals also exhibit unique reproductive strategies. For instance, some species, like frogs, lay eggs in water to ensure that their young have a suitable environment for development. Additionally, marine mammals such as whales and dolphins have adaptations like blubber for insulation and specialized lungs for breathing air while diving.