Dolphins because water is often murky. Light doesn't travel far below the surface.
Bats because they've evolved to be nocturnal when they're less threatened by predators and have plenty of prey for themselves.
Bats and Dolphins both use sound to navigate.
bats and dolphins use sound refraction to hunt for food. the bat is blind so they have to use sound refraction.
dolphins cant swim
Bats, dolphins, Whales, shrews, flying squirrels use echolocation.
There are many animals that use ultrasound. Some of these anmimals include; cats, dogs, dolphins, mice, fish and whales. the can use it to detect their prey
by using echolocation
Bats use their sense of hearing to find food. They use echolocation similar to dolphins.
bats dolphins whales
Bats and toothed whales (dolphins, porpoises, killer whales, sperm whales, and river dolphins).
they both use ecolocation to see and hear
they both use echolocation and they are both mammals
There put their butts in the air