Green frog in tree with green leaves
For Frogs, Bigger Brains Mean Worse Camouflage
Frogs invest in cognitive capacity to avoid predators—up until there are too many hungry snakes around for the evolutionary strategy to pay off.
For Frogs, Bigger Brains Mean Worse Camouflage
For Frogs, Bigger Brains Mean Worse Camouflage

Frogs invest in cognitive capacity to avoid predators—up until there are too many hungry snakes around for the evolutionary strategy to pay off.

Frogs invest in cognitive capacity to avoid predators—up until there are too many hungry snakes around for the evolutionary strategy to pay off.

predator-prey
caged panels submerged underwater
How Rising Temperatures Affect Ocean Predation
Andy Carstens | Jun 9, 2022
A study yields insights into how predator-prey dynamics may shift with climate change, but many questions remain.
Bat perching upside down in a cave.
Some Bats Buzz Like Hornets to Deter Predators
Natalia Mesa | May 9, 2022
The behavior is the first example of a mammal mimicking a more-dangerous species.
Vole in a meadow
Voles Trim Tall Grass to Prevent Attacks
Natalia Mesa | Mar 14, 2022
Mongolian rodents join the ranks of earthworms and beavers as known ecosystem engineers.
school of fish
Making Waves and Avoiding Beaks
Chloe Tenn | Dec 23, 2021
Moving collectively on the water surface could help protect schools of fish from being eaten by predatory birds.
a microscope image of mouse fur
Some Mammals May Use Specialized Hairs to Detect Predators’ Heat
Amanda Heidt | Dec 16, 2021
When observed under a microscope, guard hairs from mice resemble optical sensors used in thermal cameras to detect heat, according to a new study.
snake eating another snake
Male Snakes Cannibalizing Females Present Evolutionary Puzzle
Chloe Tenn | Nov 15, 2021
The Scientist speaks with organismal biologist Xavier Glaudas about possible reasons for his recent finding that male Montpellier snakes cannibalize female conspecifics.
A gray wolf runs along a road on a dreary day with pine trees in the distance
Few Car Crashes with Deer in Wisconsin, Perhaps Thanks to Wolves
Jef Akst | May 25, 2021
In areas where gray wolf populations have grown, motorists have fewer collisions with deer, likely due to the predators keeping deer away from roadways.
When Pursuing Prey, Bats Tune Out the World
Lisa Winter | May 1, 2021
As they close in for the kill, the flying mammals use quieter echolocation to focus on the chase.
Can Rewilding Large Predators Regenerate Ecosystems?
Katarina Zimmer | Nov 1, 2020
As some conservationists and researchers begin to return large carnivores to areas where they once roamed, scientists intensify efforts to study the ecological roles of predators.
Slideshow: How Ecologists Study the World’s Apex Predators
Katarina Zimmer | Nov 1, 2020
A global decline of large carnivores has motivated scientists to understand the animals’ ecological roles, and consider whether reintroducing them can help restore ecosystems.
Infographic: How Large Carnivores Sculpt Ecosystems
Katarina Zimmer | Nov 1, 2020
The release of gray wolves in Yellowstone decades ago still stands as one of the few examples of a predator reintroduction, and the lessons learned continue to be debated. New projects aim to do it again.
diving beetle eggs
Diving Beetle Adults and Larvae Dismember, Eat Tadpoles: Study
Catherine Offord | Jan 13, 2020
The invertebrate predators prey on and lay their eggs near emerging tadpoles, potentially threatening the conservation of endangered frogs, researchers find.
Squirrels Listen to Birdsong for Safety Cues
Emily Makowski | Sep 5, 2019
Eastern gray squirrels appear to ease up on vigilance behavior when the birds sound calm.
Flashlight fish
Image of the Day: Flashlight Fish
Nicoletta Lanese | Aug 21, 2019
The bioluminescent Anomalops katoptron can coordinate its schooling behavior after dark. 
Image of the Day: Plundered Plover
Jef Akst | Nov 9, 2018
Nest predation of shorebirds that raise young in the Arctic are up threefold since the mid-20th century, and climate change may be to blame, according to a study.
Image of the Day: Beetle Escapes Toad’s Stomach
The Scientist Staff and The Scientist Staff | Feb 8, 2018
The bombardier beetle forced its devourer to vomit it out by releasing explosive, toxic chemicals.