Animals Who Don't Have Ears
Salamanders Salamanders are slender body, short leg nocturnal amphibians that are typically found in moist habitats. These lizard-like animals do not have ears but still can detect air sounds.
Turtles Many people believe that turtles do not hear because they lack the outer ear. Even though turtles mainly rely on other senses, they can hear sounds. If we compare turtle hearing with humans, they have much less developed hearing abilities. In fact, turtles only respond to loud sounds.
Snakes When we talk about animals without ears, snakes are a must-mention. These legless lizards, despite not having external ears, have decent hearing.
Frogs Despite not having external ears, frogs have inner ears and eardrums. Not only they can hear sounds, but they can hear up to 38 kHz (the highest among any amphibian).
Spiders Until recently, scientists thought that spiders weren’t capable of capturing sounds that travel through the air. However, further studies have confirmed that spiders can also hear not only surface sounds.
Worms Despite not having ears, worms can detect sounds through the body. They collect the sounds by sensing the ground vibrations that happen near them.
Harp Seals Regardless of not having external ears, harp seals are animals that have a well-developed sense of hearing. Especially underwater. When submerged, seals’ hearing abilities are astonishing, with scopes over 60.000 Hz.
Crabs Crabs are one of those animals without ears that actually have not-so-great hearing. Crabs can only hear low to mid-frequency sounds, and only from close range.
Crocodiles The last members on our list of animals without ears are crocodiles. These scary predators have acute hearing abilities despite not having external ears. Crocodiles have openings just above their eyes; these openings lead to the inner ear. The inner ear is responsible for crocs’ great hearing.