Paramecium

Table of Contents

Introduction References & Edit History Related Topics

Images & Videos

Gymnostome (Didinium nasutum) attacking Paramecium

Discharged trichocysts of Paramecium (highly magnified)

Study the habits of amoebae, vorticellas, paramecium, and other protozoans under a microscope

Observe protozoan microorganisms from a drop of pond water under optical and electron microscopes

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Army of deadly Microbes

Meet the Microbes: 5 Tiny Protozoans and Algae

Japanese spider crab

10 Animals With Evolutionary Traits Plucked Straight Out of a Nightmare

Malayan Leaf Frog - Megophrys nasuta

9 Animals That Look Like Leaves

Cheetah (Acinonyx jubatus) standing on rock, side view, Masai Mara National Reserve, Kenya

The Fastest Animals on Earth

Big beaver gnawing on limb at river's edge

6 Animal Species that Mate for Life

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Time zone map with standard time zones and International Date Line

Why Are Some Time Zones 30 Minutes Off Instead of an Hour?

A Factory Interior, watercolor, pen and gray ink, graphite, and white goache on wove paper by unknown artist, c. 1871-91; in the Yale Center for British Art. Industrial Revolution England

Inventors and Inventions of the Industrial Revolution

The Battle of New Orleans, by E. Percy Moran, c. 1910. Andrew Jackson, War of 1812.

26 Decade-Defining Events in U.S. History

Cathedrale St.Jean in Lyon, France has a 14th-century astronomical clock that shows religious feast days till the year 2019; Perpetual Calendar

Ten Days That Vanished: The Switch to the Gregorian Calendar

Aphrodite. Greek mythology. Sculpture. Aphrodite is the Greek goddess of love and beauty.

12 Greek Gods and Goddesses

Town of Sisimiut located on the coast of the Davis Strait on Kangerluarsunnguaq Bay, Greenland

The Largest Islands in the World

Leonardo da Vinci (1452-1519), Italian Renaissance painter from Florence. Engraving by Cosomo Colombini (d. 1812) after a Leonardo self portrait. Ca. 1500.

10 Famous Artworks by Leonardo da Vinci

Paramecium: References & Edit History

More Articles On This Topic

Assorted References

chemoreception
- In chemoreception: Single-celled organisms
- In chemoreception: Single-celled organisms
digestive process
- In digestion: Ingestion
- In protozoan: Food vacuoles
locomotion
- In muscle: Cilia and flagella
- In nervous system: Organelle systems
reproduction
trichocysts
- In trichocyst

Article Contributors

Primary Contributors

The Editors of Encyclopaedia Britannica

Other Encyclopedia Britannica Contributors

Article History

Type	Description	Contributor	Date
	Modified link of Web site: National Center for Biotechnology Information - PubMed Central - Integrative Neuroscience of Paramecium, a Swimming Neuron.	Aakanksha Gaur	Nov 27, 2024
	Add new Web site: CORE - Paramecium learning: New insights.	Aakanksha Gaur	Oct 04, 2024
	Add new Web site: Nature - Somersault of Paramecium in extremely confined environments.	Gloria Lotha	Jun 12, 2024
	Add new Web site: National Center for Biotechnology Information - PubMed Central - Integrative Neuroscience of Paramecium, a Swimming Neuron.	Gloria Lotha	Dec 01, 2023
	Add new Web site: Frontiers - Paramecium, a Model to Study Ciliary Beating and Ciliogenesis: Insights From Cutting-Edge Approaches.	Gloria Lotha	Jul 25, 2023
	Add new Web site: Live Science - Paramecium: Characteristics, biology and reproduction.	Gloria Lotha	Jan 23, 2023
	Added information on the size of paramecia, their significance as model organisms, their taxonomy, and the proposed functions of trichocysts.	Kara Rogers	Jun 12, 2015
	Added new Web site: How Stuff Works - Science - Paramecium.	Shiveta Singh	Feb 06, 2009
	Added new Web site: Biological Sciences at University of Massachusetts - Paramecium.	Shiveta Singh	Mar 10, 2008
	Added new Web site: University of Wisconsin - Paramecium.	Shiveta Singh	Mar 10, 2008
	Article revised.	The Editors of Encyclopaedia Britannica	Mar 26, 1999
	Article added to new online database.	The Editors of Encyclopaedia Britannica	Jul 20, 1998