an anglerfish
Because it is so dark they can't see
it helps them locate a direct food source (the fish).
Fish in the abyssal zone locate food through chemical sensing because it is a dark, deep environment with limited visibility, making it difficult to rely on sight. Chemical sensing allows them to detect and locate prey using their sense of smell, helping them navigate and find food in this challenging habitat.
Barbels are sensory organs found near the mouth of certain fish species, such as catfish. They help the fish to locate food by detecting vibrations and chemicals in the water. Barbels can also aid in navigating dark or murky waters.
Dog
Dolphins chase fish, get their sense of direction, and maneuver the ocean through echolocation. Basically, like bats, they send out waves that bounce back and help them navigate, locate prey, and avoid obstacles. They can even use this to locate fish hiding in the sand.
The cockroach nymph uses it feelers to find its way in the dark. It also uses them to locate food sources.
Bottle nosed dolphins hunt individually and as teams. They locate fish by using echo-location, and are fast and agile swimmers, so they can pursue the fish and and catch it in their teeth.
In "The Impossible Test 3," to feed Charles some fish food, you need to locate the fish food item in the game. Once you find it, drag and drop the food onto Charles, ensuring you do this quickly as time is often limited. Follow any additional prompts or instructions that appear on the screen to complete the task successfully.
Echoes are used by dolphins to hunt for their prey in the deeps of the ocean to locate food. They make sort of clicking noises which bounce off the fish to let them know of how far away they are and how big the fish is.
because their are scare in dark
the dark