ExploreAmphibian

Olm

Proteus anguinus

The olm is a special salamander that lives underwater. It has a long, smooth body and can be very pale because it doesn't see sunlight.

Habitat: Caves and underwater rivers

Appearance

The Olm has a slender, eel-like body with smooth, pale pinkish-white skin due to a complete lack of pigment. It features distinctive feathery, bright red external gills behind its head, and tiny, undeveloped eyes are covered by skin.

KingdomAnimaliaPhylumChordataClassAmphibiaOrderCaudataFamilyProteidaeGenusProteus
Olm
wildlife trait badgecave_dwelling trait badgelongevous trait badgecarnivorous trait badge
Olm

Category

Amphibian

Rarity

Rare

Danger

2/5

Snaps

Be the first to snap!

Interesting facts

Olm are sometimes called "human fish" because of their pale, skin-like color.

Olm were once thought to be baby dragons emerging from underground caves!

Their skin is pale pink because they never see sunlight in their dark cave homes.

They can live an astonishing 10 years without eating a single meal!

Special abilities

Ability

Sensory Superpower

Olm can sense prey and navigate using heightened smell, hearing, and electroreception in total darkness.

Ability

Extreme Survivor

Olm has a super-slow metabolism that allows them to survive for many years without food.

Measurements & details

Length
20-30 cm
Weight
0.02-0.1 kg
Lifespan
70-100 years
Top Speed
0.1 km/h
Clutch Size
12-70

Diet & Feeding

This cave amphibian dines on small invertebrates and tiny fish.

Primary Foods

  • Small crustaceans
  • Insect larvae
  • Snails
  • Worms

Foraging Method

  • Ambush

Ecological connections

hunts

Cave amphipod

Niphargus stygius

Olm actively hunts this small cave-dwelling crustacean.

hunts

Cave shrimp

Troglocaris anophthalmus

The Olm also consumes this tiny, blind cave-dwelling shrimp.

hunts

Freshwater flatworm

Phagocata vitta

Sometimes the Olm will eat these small, delicate cave flatworms.

Traits

Also known as

Human Fish

Safety

Danger

2/5

Look but don’t touch. Keep a safe distance and wash hands after exploring.

Frequently Asked Questions

How long is Olm?

20-30 cm

How much does Olm weigh?

0.02-0.1 kg

How long does Olm live?

70-100 years

How fast can Olm move?

0.1 km/h

What does Olm eat?

This cave amphibian dines on small invertebrates and tiny fish.

Where is Olm usually found?

Caves and underwater rivers

How does Olm hunt?

Ambush

How many eggs does Olm lay?

12-70

Snap Map

Zoom in to split clusters and explore where this object has been snapped.

Loading map…

Recent Snaps

Recent snaps will appear here as new observations are added.

More Amphibians