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What are model organisms?

A model organism is a species that has been widely studied, usually because it is easy to maintain and breed in a laboratory setting and has particular experimental advantages.

This page was last updated on 2017-03-03

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Why use the worm in research?

Facts

While the fruit fly has a long history as a model organism, the nematode worm (Caenorhabditis elegans) has only been used as a model organism since the early 1960s.

Why use the zebrafish in research?

Facts

Since the 1960s, the zebrafish (Danio rerio) has become increasingly important to scientific research. It has many characteristics that make it a valuable model for studying human genetics and disease.

Why use the fly in research?

Facts

The fruit fly (Drosophila melanogaster) is one of the most well understood of all the model organisms.

Why use the frog in research?

Facts

Much of our current knowledge about the mechanisms of early development in vertebrates comes from studies using the African clawed frog (Xenopus laevis) and Western clawed frog (Xenopus tropicalis).

Why use yeast in research?

Facts

Baker’s yeast, or Saccharomyces cerevisiae as it is also known, is among the best-studied experimental organisms.

Why use the mouse in research?

Facts

Humans and mice share many common genetic features and by examining the physiology, anatomy and metabolism of a mouse, scientists can gain a valuable insight into how humans function.

Inbreeding: from champion horses to life-saving mice

Stories

Humans have been breeding animals for millenia to bring out desirable characteristics. With the thoroughbred race horse there's lots of money at stake but with research mice it's the possibility of life-saving new treatments.