Burrow
a den or burrow
By defintion, a tunnel is underground.
Animals that live underground are classified as subterranean dwellers. They use tunnels to travel and create dens and multiple entries and exits. The common name for a tunnel is a burrow.
There is no underground tunnel.
they lve in any wetland or underground to prevent predators from finding them.
it is an adjective because it is describing something.ex. the tunnel is underground-it describes where the tunnel is :)
Animals that live underground are known as Fossorial animals. Many animals burrow and live underground including: prairie dogs, rats, badgers, ground hogs, ferrets, etc
Sea
The one word synonym for "underground passageway" is "tunnel".
oasis
the underground tunnel in goldenrod
a tunnel