Whether it's the wafting aroma of our favorite meal or the dangerous fumes seeping from a toxic chemical, the human sense of smell has evolved into a sophisticated system that processes scents through several intricate stages. ...
Plants & Animals
May 21, 2024
0
37
Female fruit flies use male pheromones to assess their social context and shorten the amount of time they store sperm after mating, allowing them to re-mate sooner, according to a new study.
Ecology
Apr 17, 2024
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8
Caterpillars have the ability to consume copious amounts of plant materials in a short time. Caterpillars use their antennae to scan their surroundings in order to eat safely in a hostile environment. Researchers of Wageningen ...
Plants & Animals
Apr 10, 2024
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271
Sex pheromones are vital in facilitating the chemical communication that underpins insect courtship and mating behavior. Among female American cockroaches (Periplaneta americana), two key volatile sex pheromone components, ...
Plants & Animals
Apr 5, 2024
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4
A living organism's nose is essentially a biological molecule detector that sends neurological signals to the brain, which then decodes a particular scent. Human noses, with six million olfactory receptors, can distinguish ...
Analytical Chemistry
Mar 5, 2024
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102
Watching someone cry often evokes an emotional response—but according to a new study published Thursday, human tears themselves contain a chemical signal that reduces brain activity linked to aggression.
Other
Dec 25, 2023
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222
Some fish come onto the land to hunt or move around. Typically, this behavior happens at nighttime, as seen in eels, for instance. In the new study, researchers have found that such amphibious fishes might have an enhanced ...
Evolution
Aug 15, 2023
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27
In a compost heap, the nematode Caenorhabditis elegans finds a richly laid table: at a length of just one millimeter, the worm feeds on bacteria that decompose organic material. It is essential that the animal avoids sunlight—and ...
Biotechnology
Aug 2, 2023
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4
The impact of air pollution on insect health and reproduction is greater than previously understood and could be contributing to global declines in insect populations, including in remote wilderness areas, new research shows.
Plants & Animals
Jul 13, 2023
0
137
The Egyptian cotton leafworm (Spodoptera littoralis) is a pest species in France. It is found throughout the Mediterranean Basin as well as in Africa and the Middle East. Moth larvae are extremely polyphagous and cause damage ...
Evolution
May 15, 2023
0
3
