TOP 10 ANIMALS THAT LIVE UNDERGROUND

10. Olm
Also known as the proteus, the olm is a sea-dwelling creature. Olm belongs to the Proteidae family, and it is the only remaining cave-dwelling species mostly found in Europe. The most striking feature of this amphibian is its unique ability to live in underwater caves for the rest of its lives. It is described as being blind, and this can be the main reason why this aquatic salamander spends most of its life hiding in caves. Its hearing sensors are highly enhanced to understand its surrounding better. Olm is classified as being entirely carnivores. Therefore, it obtains its food from eating other small sea invertebrates such as worms, snails, and other marine insects.

9. Earthworm
Earthworms are classified as being underground living animals because of their ability to exist in land soils. There are different species of earthworms, and they are all adapted to living in different underground habitats. However, most of these species exist in moist soils and areas with plenty of dead plants. The earthworms are best known to exist in rainy forests; however, they can be found in different habitats such as inland and fresh water. These worms spend most of their lives below the soil surface where there are abundant decomposing plant materials that they can eat.