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Photo of John Calhoun crouches within his rodent utopia-turned-dystopia
Universe 25 Experiment
A series of rodent experiments showed that even with abundant food and water, personal space is essential to prevent societal collapse, but Universe 25's relevance to humans remains disputed.
Universe 25 Experiment
Universe 25 Experiment

A series of rodent experiments showed that even with abundant food and water, personal space is essential to prevent societal collapse, but Universe 25's relevance to humans remains disputed.

A series of rodent experiments showed that even with abundant food and water, personal space is essential to prevent societal collapse, but Universe 25's relevance to humans remains disputed.

growth

a human neuron illuminated in bright green on a black background.
Mitochondrial Metabolism Dictates Neurons’ Growth Rate
Katherine Irving | Jan 30, 2023 | 4 min read
Altering the rate of respiration in mitochondria changes how fast neurons grow, making mouse neurons grow more like human ones and vice versa, a study finds.
a giant isopod in an aquarium
Genome Spotlight: Giant Isopod (Bathynomus jamesi)
Christie Wilcox, PhD | May 26, 2022 | 3 min read
The first high-quality genome for a marine isopod may shed light on how this group of crustaceans adapted to the deep, dark depths of the ocean.
Photo of a tiger moth
Antibiotics Given to Moths Spur Upregulation of Growth Genes
Devin A. Reese, PhD | Mar 1, 2022 | 2 min read
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 | 3 min read
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 | 1 min read
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 | 1 min read
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 and The Scientist Staff | Dec 7, 2017 | 1 min read
Researchers examine the effects on the fruit fly intestine of the protein responsible for Fragile X syndrome in humans. 
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