# Planaria

Planaria are flatworms that live in freshwater habitats like ponds and streams. They have a unique ability to regenerate, which means they can regrow body parts if they get hurt.

- **Category:** [Invertebrate](https://www.snappit.app/explore/categories/invertebrate)
- **Rarity:** Common
- **Danger:** 1/5 · Very low
- **Habitat:** Freshwater
- **Also known as:** Flatworm, Turbellarian

![Planaria](https://res.cloudinary.com/drieglelr/image/upload/v1771426648/objects/6317.jpg)

## Appearance

The Planaria has a distinctive spade-shaped head with two prominent 'eyespots' that give it a cross-eyed look. Its flat, soft body is typically brown, grey, or black, blending into its freshwater habitat. It's easily identified by its unique head shape.

## Taxonomy

- **Kingdom:** Animalia
- **Phylum:** Platyhelminthes
- **Class:** Rhabditophora
- **Order:** Tricladida
- **Family:** Planariidae
- **Genus:** Planaria

## Interesting facts

- Each Planaria has both boy and girl parts, they can make babies all by themselves!
- Planaria breathe right through their skin, no lungs or gills needed!
- Scientists study Planaria to learn how bodies regrow and even if they can learn!
- Their 'eyespots' only detect light and dark, not clear images like ours!

## Special abilities

- **Unstoppable Rebirth:** Planaria can regrow any lost body part, even a whole new body from a tiny fragment, thanks to amazing stem cells.
- **Super Sniffer Sense:** Planaria use chemical sensors on their head to detect food and navigate their environment from afar.
- **Pharynx Pop-out:** Planaria can extend a tube-like pharynx from their belly to suck up food like a straw, surprise feeding!

## Measurements & details

- **Length:** 0.5-2.0
- **Lifespan:** 0.5-1.0

## Diet & Feeding

Planaria are tiny hunters and scavengers, feasting on small living creatures and dead organic matter.

- **Primary Foods:** small worms, protozoa, dead insects, decaying organic matter, tiny crustaceans
- **Foraging Method:** Scavenging

## Ecological connections

- **Eaten by:** Fathead Minnow (*Pimephales promelas*) — Minnows often consume small aquatic invertebrates.
- **Eaten by:** [Eastern Newt](https://www.snappit.app/explore/eastern-newt) (*Notophthalmus viridescens*) — Newts prey on various small freshwater creatures.
- **Hunts:** Paramecium (*Paramecium caudatum*) — Planaria feed on tiny single-celled organisms.
- **Hunts:** Water Flea (*Daphnia pulex*) — Planaria consume small aquatic crustaceans.

## Traits

- [Wildlife](https://www.snappit.app/explore/traits/wildlife): Wildlife encompasses all undomesticated animal and plant life existing in their natural habitats.
- [Scavenger](https://www.snappit.app/explore/traits/scavenger): Scavengers consume dead organic matter, helping to decompose carcasses and other waste in the ecosystem.
- [Filter Feeder](https://www.snappit.app/explore/traits/filter-feeder): Filter feeders obtain nutrients by straining suspended food particles and small organisms from water.
- [Ancient Lineage](https://www.snappit.app/explore/traits/ancient-lineage): This trait signifies organisms belonging to a very old evolutionary group with ancestors dating back millions of years.
- [Freshwater](https://www.snappit.app/explore/traits/freshwater): Freshwater habitats include non-saline aquatic environments such as rivers, lakes, ponds, and wetlands, vital for numerous species.
- [Regenerative](https://www.snappit.app/explore/traits/regenerative): Regenerative organisms possess the ability to regrow lost or damaged body parts, tissues, or organs.
- [Nocturnal](https://www.snappit.app/explore/traits/nocturnal): Nocturnal animals are primarily active during the nighttime hours, typically resting or sleeping during the day.

## Collections

- [Invertebrates](https://www.snappit.app/explore/collections/invertebrates)

## Safety

**Danger:** 1/5 · Very low

Avoid touching planaria in the wild to protect their delicate bodies and habitat.

## Frequently Asked Questions

### How to identify Planaria?

Compare body symmetry, shells, segments, legs, tentacles and how the animal moves. Invertebrates span many unrelated groups, so start with body structure. Invertebrate Identifier: upload a photo and compare the visible details.

### How long is Planaria?

0.5-2.0

### How long does Planaria live?

0.5-1.0

### What does Planaria eat?

Planaria are tiny hunters and scavengers, feasting on small living creatures and dead organic matter.

### Where is Planaria usually found?

Freshwater

### How does Planaria hunt?

Scavenging

## More Invertebrate

- [Coral](https://www.snappit.app/explore/coral)
- [Crab Spider](https://www.snappit.app/explore/crab-spider) (*Mecaphesa asperata*)
- [Garden Spider](https://www.snappit.app/explore/garden-spider) (*Araneus diadematus*)
- [Brown Recluse Spider](https://www.snappit.app/explore/brown-recluse-spider) (*Loxosceles reclusa*)

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Source: [Planaria: Characteristics, Facts & Places to See — Snappit](https://www.snappit.app/explore/planaria)