ExploreInvertebrate

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.

Habitat: Freshwater

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.

KingdomAnimaliaPhylumPlatyhelminthesClassRhabditophoraOrderTricladidaFamilyPlanariidaeGenusPlanaria

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

Planaria can regrow any lost body part, even a whole new body from a tiny fragment, thanks to amazing stem cells.

Planaria use chemical sensors on their head to detect food and navigate their environment from afar.

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

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

Step into the incredible world of wild animals and plants living freely in nature. From tiny insects to towering trees, it's all part of the wild wonders around us!

Scavenger

Meet nature's clean-up crew! These important animals help keep the environment tidy by eating what other animals have left behind or things that have passed away.

Filter Feeder

Discover amazing animals that filter their food right from the water! They have special ways to strain tiny bits of plants or other creatures to eat.

Ancient Lineage

These fascinating organisms carry echoes of the deep past, with ancestors that have roamed the Earth for an incredible span of time. They are living links to ancient worlds!

Freshwater

Discover animals and plants that live in non-salty water, like rivers, lakes, and ponds! These watery homes are vibrant with life.

Regenerative

Imagine if you could grow back a lost arm or tail! Some incredible creatures have the power to regrow body parts, making them truly amazing survivors in nature.