EXPLORING THE SUBTERRANEAN WORLD

The cold bath is sometimes the only way to get to the animals.

Descending into the abyss.

Squeezing through very narrow passages is sometimes required in caves.

Searching for animals with diving equipment.

Traps are often used to catch aquatic animals.

Sometimes we find pitfall traps of unknown origin that kill a lot of cave animals.

A mass of cave animals that died in the pitfall trap. If such traps are set for too long they can pose a great threat to local cave populations.

Descending into the abyss.

Descending into the abyss.

There are many narrow passages in caves.

There are many narrow passages in caves.

There are many narrow passages in caves.

Speleothems.

Lesser horseshoe bat (Rhinolophus hipposideros) during winter sleep.

Lesser horseshoe bat (Rhinolophus hipposideros) during winter sleep.

Lesser mouse-eared bat (Myotis oxygnathus)

Barbastelle bat (Barbastella barbastellus)