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a fuzzy black and tan beetle chews on the bark of a pine tree sapling, whose needles can be seen in the background
Pine Trees’ Fragrances Help Neighbors Battle Bark Beetles
Polluted air impedes the trees’ ability to read one another’s signals, a study finds.
Pine Trees’ Fragrances Help Neighbors Battle Bark Beetles
Pine Trees’ Fragrances Help Neighbors Battle Bark Beetles

Polluted air impedes the trees’ ability to read one another’s signals, a study finds.

Polluted air impedes the trees’ ability to read one another’s signals, a study finds.

chemical signaling
mouse nose peeking out from between two yellow objects
Not-so-Mellow Yellow: Pregnant Mice’s Urine Stresses Out Males
Sophie Fessl, PhD | Jun 20, 2022 | 3 min read
An odorant found in the pee of pregnant mice—and in bananas—induces stress but also relieves pain in male mice, a study shows.
Cute sleeping newborn baby child on mother hands stock photo
Exposure to Chemical from Babies Linked to Aggression
Chloe Tenn | Nov 22, 2021 | 3 min read
A study finds that the odorless compound hexadecanal, or HEX, increases aggressive behavior in women but has a calming effect on men.
Generations of Insect Attacks Drive Plants to “Talk” Publicly
Ashley Yeager | Mar 1, 2020 | 4 min read
Goldenrods that evolved in the presence of herbivores release volatile chemicals that trigger defenses in neighboring plants of their species, even those that are genetically unrelated.
Neurobiologist Paul Greengard Dies
Ashley Yeager | Apr 15, 2019 | 3 min read
The Nobel laureate revolutionized our understanding of how brain cells communicate.
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