Photo of John Calhoun crouches within his rodent utopia-turned-dystopia
Universe 25, 1968–1973
A series of rodent experiments showed that even with abundant food and water, personal space is essential to prevent societal collapse.
ABOVE: Yoichi R. Okamoto, White House photographer, Public Domain
Universe 25, 1968–1973
Universe 25, 1968–1973

A series of rodent experiments showed that even with abundant food and water, personal space is essential to prevent societal collapse.

A series of rodent experiments showed that even with abundant food and water, personal space is essential to prevent societal collapse.

ABOVE: Yoichi R. Okamoto, White House photographer, Public Domain

growth

Photo of a tiger moth
Antibiotics Given to Moths Spur Upregulation of Growth Genes
Devin A. Reese | Mar 1, 2022
A new study has identified a molecular tradeoff between growth and immunity in moths in response to the administration of subtherapeutic doses of antibiotics, a common practice in animal husbandry.
colonies of mold growing on a Petri dish
Fungi Squeezed Through Microchannels Offer Clues to Cell Growth
Catherine Offord | Jun 1, 2021
A study finds that fast-growing species are stymied by narrow gaps, while slower-growing species can pass through and continue extending.
illustration of how slow-growing and fast-growing fungi grow through a narrow channel
Infographic: How Fungi Squeeze Through Tight Spaces—or Don’t
Catherine Offord | Jun 1, 2021
A study finds that slower-growing species are better able to adjust their growth to fit their hyphae through narrow passages.
Image of the Day: Nutrient Sensor
Amy Schleunes | Mar 26, 2020
A zinc-sensing protein found in fruit fly intestines regulates the insect’s growth and feeding behavior.
Image of the Day: Fragile Fly 
The Scientist Staff, The Scientist Staff | Dec 7, 2017
Researchers examine the effects on the fruit fly intestine of the protein responsible for Fragile X syndrome in humans.