6,697 results
- Life
Animal sperm arose once
A gene governing production of male reproductive cells goes back to a common ancestor that lived about 600 million years ago, a study finds.
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Letters
The liver’s carbon fixation The possibility that insects can harness solar energy (SN: 1/15/11, p. 8) is no less fascinating than the ability of the mammalian liver to do the light-independent part of photosynthesis: carbon fixation. When concentrations of the amino acid methionine rise after a high-protein meal, the liver shifts gears to get rid […]
- Life
Artificial butterfly mixes high, low tech
Model shows importance of wing veins and bobbing flight to keeping swallowtails aloft.
- Life
Why starved flies need less sleep
Low lipid levels keep the insects buzzing past bedtime, a new study finds, suggesting a role for metabolism in regulating sleep.
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The Color of Controversy
Link between food dyes, childhood hyperactivity gets renewed attention.
- Life
‘Whispering’ gives bats the drop on prey
A stealth approach to echolocation appears to be adaptive for catching eared moths.
- Humans
Google a bedbug today
With no good technological solutions, entomologists call on the public to remain eternally vigilant against a resurgent foe.
- Life
Unraveling ant genomes yields high hopes
A new study may yield new insights into behavior and life-span in ants and other animals.
- Life
Fruit flies turn on autopilot
High-speed video reveals the aerodynamics behind the insects’ maneuverability.
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All Patterns Great and Small
Researchers uncover the origins of creatures’ stripes and spots.
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Evolution’s Wedges
Finding the genes that drive one species into two.
- Life
Will groom for snuggles
Sooty mangabey and vervet monkey mothers charge a price, dictated by market forces, that other females must pay to touch their babies.
