Two Chinook salmon swimming in the water
Probable Chlorine Exposure Kills 21,000 Fish at UC Davis
Threatened and endangered species were among the dead, likely poisoned overnight by a chlorination system used to decontaminate the animals’ tank water.
Probable Chlorine Exposure Kills 21,000 Fish at UC Davis
Probable Chlorine Exposure Kills 21,000 Fish at UC Davis

Threatened and endangered species were among the dead, likely poisoned overnight by a chlorination system used to decontaminate the animals’ tank water.

Threatened and endangered species were among the dead, likely poisoned overnight by a chlorination system used to decontaminate the animals’ tank water.

toxin
An orange-brown pineapple sea cucumber, covered in wart-like growths, rests on the seafloor in front of some coral, with a school of fish swimming overhead.
How the Sea Cucumber Defends Itself . . . From Itself
Natalia Mesa | Jul 1, 2022
The marine animals have evolved a unique molecular pathway enabling them to use toxins to fight off invaders without poisoning themselves in the process.
headshot man
Ophthamologist Alan Scott Dies at Age 89
Chloe Tenn | Dec 29, 2021
The Smith-Kettlewell Eye Research Institute scientist developed Botox for medicinal use.
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Metabolomic Links Between Environmental Exposures and Human Health
The Scientist Creative Services Team
Experts discuss how untargeted metabolomic studies connect environmental factors with human disease.
whitefly horizontal gene transfer plant animal virus crop pest agriculture BtPMaT1 Bemisia tabaci
First Report of Horizontal Gene Transfer Between Plant and Animal
Emma Yasinski | Mar 25, 2021
Whiteflies overcome a toxin in plants they eat through the use of the plant’s own genetic protection, likely ferried from plant to insect millions of years ago by a virus.
Bald Eagle Killer Identified
Abby Olena | Mar 25, 2021
After a nearly 30-year hunt, researchers have shown that a neurotoxin generated by cyanobacteria on invasive plants is responsible for eagle and waterbird deaths from vacuolar myelinopathy.
a close-up photo of C. elegans worms
Eyeless C. elegans Perceives Colors: Study
Shawna Williams | Mar 4, 2021
The roundworm uses cues from visible light to help avoid eating toxic bacteria with a distinguishing hue.
Host Cells Release Exosomes to Sop Up Bacterial Toxins
Rachael Moeller Gorman | Jun 1, 2020
During bacterial infection, autophagy proteins appear to regulate the release of cell-saving exosomes, which bear the brunt of toxin damage.
Infographic: How Cells Use Decoys to Defend Against Pathogens
Rachael Moeller Gorman | Jun 1, 2020
Specialized exosomes sop up bacterial toxins, a study finds.
snake venom stem cells
Snake Venom Gland Organoids Produce Functional Toxins
Amy Schleunes | Jan 24, 2020
Stem cells from nine snake species respond to tissue culturing techniques previously used only on mouse and human stem cells.
Blood-Cleaning Machine Quickly Eliminates Carbon Monoxide in Rats
Ruth Williams | Oct 9, 2019
A device that illuminates and oxygenates blood outside of the body before pumping it back in removes the gas by freeing hemoglobin from CO.
Image of the Day: Poison Tolerance
Emily Makowski | Oct 3, 2019
Genetically engineered Drosophila withstand toxins common in monarch butterflies’ diet.
Two orcas underwater
Long-Banned Pollutants Will Decimate Orcas: Study
Shawna Williams | Sep 28, 2018
PCBs persist in the environment and accumulate in killer whales, driving their numbers down.
Toxic Red Tide Kills Countless Fish as It Moves Up Florida’s Coast
Sukanya Charuchandra | Sep 10, 2018
Officials in one county are running operations to clean up the rotting fish.
Image of the Day: That Toad Is Poison
Sukanya Charuchandra | Jun 5, 2018
The introduction of the poisonous Duttaphrynus melanostictus into Madagascar could be fatally risky for the island’s native predators.
Bees’ Molecular Responses to Neonicotinoids Determined
Catherine Offord | Mar 22, 2018
Researchers pinpoint a protein that can metabolize at least one of the insecticides, highlighting a route to identifying compounds that are friendlier to the critical pollinators.
Animal Analgesics
The Scientist Staff | Jan 1, 2018
A cornucopia of toxins in the animal kingdom could provide inspiration for novel painkillers, but so far, effective drugs have proven elusive.
 
Novel Analgesics at a Snail’s Pace
Bob Grant | Jan 1, 2018
Studying cone snail venom has yielded novel pain pathways, but the peptides that function as toxins are difficult to translate into drugs.
Researchers Mine Centipede Toxins for Analgesics
Catherine Offord | Jan 1, 2018
Venomous centipedes may harbor a clue to the creation of a successful pain-killing compound for humans.
Mining Spider Toxins for Analgesic Clues
Catherine Offord | Jan 1, 2018
Arachnids harbor a plentiful array of molecules that target mammalian pain receptors.