Planarian: meaning, definitions and examples

🐍

Add to dictionary

planarian

[pləˈnɛəriən ]

Definition

^{Context #1 | Noun}

biology organism

A planarian is a flatworm of the class Turbellaria, characterized by a flattened body and the ability to regenerate lost parts. These organisms are often found in freshwater environments and are known for their distinct head and bilaterally symmetrical body. They are commonly studied in research due to their remarkable regenerative abilities.

Synonyms

flatworm, turbellarian.

Examples of usage

Planarians are commonly used in biological research.
The planarian's ability to regenerate makes it an important model organism.
Many species of planarians inhabit freshwater streams and ponds.

Interesting Facts

Etymology

The name 'planarian' comes from the Latin word 'planus,' meaning 'flat,' because of their flat body shape.
Planarians belong to the class Turbellaria, a group of soft-bodied, mostly free-living flatworms.

Regeneration

Planarians are famous for their incredible ability to regenerate lost body parts, sometimes regrowing their entire body from just a fragment.
Research has shown that they can regenerate their heads, tails, and even internal organs, which makes them a focus in scientific studies on healing.

Habitat

These creatures are typically found in freshwater environments, such as ponds and streams, where they hunt for small invertebrates.
Some planarians can also live in saltwater or on land in moist environments.

Biological Significance

Planarians are often used in scientific research due to their regenerative abilities, providing insights into tissue repair and regeneration.
The study of planarians has implications for understanding cancer and aging in more complex organisms.

Cultural References

Planarians have been featured in popular science education, demonstrating biological concepts in classrooms.
They are sometimes used in experiments to teach students about evolution and natural selection due to their unique traits.