High levels of hair cortisol—a sign of long-term stress—are associated with reduced survival in wild grey mouse lemurs (Microcebus murinus), according to a study published in the open access journal BMC Ecology.
Ecology
Aug 31, 2017
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2
Take a fish out of water and its stress hormones will go up. Adrenaline and noradrenaline, the "fight or flight" hormones, peak first, followed more gradually by cortisol. A new study finds that largemouth bass whose cortisol ...
Ecology
Aug 22, 2017
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3
Lizards living in fire-ant-invaded areas are stressed. However, a team of biologists found that the lizards did not exhibit this stress as expected after extended fire ant exposure in socially stressful environments, leading ...
Ecology
May 23, 2017
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8
In humans and other social animals stress is associated with poor health and high mortality. These negative effects can be buffered by receiving social support from relatives or friends. However, the mechanisms responsible ...
Plants & Animals
Nov 2, 2016
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302
A pair of studies led by Indiana University researchers provide new evidence that when it comes to evolution, the testes may play a key role.
Evolution
Jun 15, 2016
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19
Tourists who feed wild monkeys in Morocco are risking the health of an endangered species by making them larger, more susceptible to disease, and more stressed, according to new research.
Plants & Animals
May 24, 2016
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10
Many people feel anxious in crowds. But not so for prairie voles.
Plants & Animals
Jan 19, 2016
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18
Red squirrels living in a low-stress environment harbour healthier communities of micro-organisms, a result that might hold implications for human health, according to a new University of Guelph-led study.
Plants & Animals
Jan 5, 2016
2
841
Researchers studying banded mongooses in Uganda have discovered that pups born to females that experienced elevated stress hormones during the later stages of pregnancy are much less likely to survive their first month.
Plants & Animals
Oct 27, 2015
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419
The refinement of a common handling technique used on laboratory animals for pre-clinical research can dramatically reduce stress levels and significantly improve welfare, according to the findings of a new study published ...
Plants & Animals
Sep 28, 2015
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