What are 2 deaf animal species?

Two examples of deaf animal species are certain types of frogs and some species of whales. Many frogs, especially those in the group known as "blind frogs," have evolved in dark cave environments where they have lost their hearing ability due to the lack of sound perception in their habitat. Similarly, some whale species can exhibit deafness, often as a result of environmental factors or health issues, which can impact their communication and navigation.