Green fish in front of bottom of boat
The Deepwater Horizon Oil Spill’s Hidden Impacts on Mahi-Mahi      
Mahi-mahi were more likely to be eaten and less likely to spawn after being exposed to sublethal concentrations of oil, raising concerns about the risks oceanic drilling pose to life in the ocean.
The Deepwater Horizon Oil Spill’s Hidden Impacts on Mahi-Mahi      
The Deepwater Horizon Oil Spill’s Hidden Impacts on Mahi-Mahi      

Mahi-mahi were more likely to be eaten and less likely to spawn after being exposed to sublethal concentrations of oil, raising concerns about the risks oceanic drilling pose to life in the ocean.

Mahi-mahi were more likely to be eaten and less likely to spawn after being exposed to sublethal concentrations of oil, raising concerns about the risks oceanic drilling pose to life in the ocean.

evolutionary ecology
group of people standing on rock outcropping with ocean in distance
Repeated El Niño Events Could Spark Big Ecological Shifts
Margaret Osborne | Sep 19, 2022
Five major El Niño events per century could lead to fewer fishes that thrive in cold water and more terrestrial birds in eastern coastal ecosystems.
Photo of a North American caribou (Rangifer tarandus) in Jasper National Park in Canada
Dozens of Genes Tied to Caribou’s Seasonal Migration
Maddie Bender | May 2, 2022
Researchers tracked the movements of endangered caribou and sequenced a portion of their genomes to determine which genes may influence migratory behavior.
bat flying in front of tan building
Fruit Bats Echolocate During the Day Despite Having Great Vision
Natalia Mesa | Apr 20, 2022
Contrary to what researchers had assumed, Egyptian fruit bats don’t rely solely on sight to orient themselves as they drink and forage for food in daylight. 
a research sailboat with white sails inscribed with "tara ocean" traverses a body of water with small, rocky islands in the background
Q&A: Thousands of RNA Viruses Newly Discovered in Ocean Water
Dan Robitzski | Apr 7, 2022
The Scientist spoke with Ohio State University microbiologist Matthew Sullivan about a recent expedition that identified thousands of RNA viruses from water samples and cataloged them into novel phylogenic groups.
Drosophila melanogaster on cactus leaf
Fruit Flies Evolve in Time with the Seasons: Study
Natalia Mesa | Mar 17, 2022
Researchers find that evolution can operate on extraordinarily fast timescales.
close-up of a salmon's head swimming among underwater plants
Sudden Decline in Salmon Growth May Signal Ecological Shift
Natalia Mesa | Mar 4, 2022
The decrease in growth appears to be associated with increasing water temperatures, affecting animals throughout the marine food web.
two quails
Chromosomal Rearrangement Linked to Less Mobile Quail
Chloe Tenn | Dec 7, 2021
The Scientist interviews evolutionary biologist Carles Vilà about how a large genomic inversion detected in common quail affects the birds’ physical characteristics and migratory behaviors.
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 reticulated giraffe in Samburu National Park, Kenya
Whole-Genome Data Point to Four Species of Giraffe
Ruth Williams | May 6, 2021
The genome sequences of 51 giraffes from all over Africa contribute to the latest attempt in an ongoing pursuit to pin down a species number.
Pandemic Shutdown Altered Bay Area Birdsongs
Ruth Williams | Sep 24, 2020
As shelter-in-place orders quieted the city of San Francisco, its sparrow population developed softer, sexier songs.
Monkey Hybrids Challenge Assumptions of What a Species Is
Jim Daley | May 3, 2018
A study finds two species of guenon monkeys in Tanzania have been mating and producing fertile offspring for generations.
Pinpointing the Origin of Marbled Crayfish Clones
Diana Kwon | May 1, 2018
Research suggests that the invasive, all-female Procambarus virginalis originated in a German aquarium back in the 1990s.
Hawaiian Spiders on Different Islands Evolved Same Disguise in Parallel
Catherine Offord | Mar 8, 2018
In an unusual evolutionary twist, local stick spiders have come up with an almost identical repertoire of color morphs in multiple locations.
Amazonian Fish Genome Challenges Long-Held Assumptions About Asexual Reproduction
Jim Daley | Feb 14, 2018
Poecilia formosa, an all-female fish species, has a surprisingly robust genome. 
Spiders with Long Tails Found in Ancient Amber
Jim Daley | Feb 5, 2018
This discovery closes a 170-million-year gap in the fossil record.
Lords of the Flies
Aggie Mika | Jun 19, 2017
Biologists’ walk in the woods sparks the creation of a masterful fruit fly field guide.