Photo of Steve Ramirez
Steve Ramirez Reshapes Memories in the Brains of Mice
The Boston University neuroscientist wants to take the edge off traumatic memories by manipulating how they’re processed in the brain.
Steve Ramirez Reshapes Memories in the Brains of Mice
Steve Ramirez Reshapes Memories in the Brains of Mice

The Boston University neuroscientist wants to take the edge off traumatic memories by manipulating how they’re processed in the brain.

The Boston University neuroscientist wants to take the edge off traumatic memories by manipulating how they’re processed in the brain.

animal research

a section of a rat brain is imaged in dull green. a much brighter green human organoid takes up a large portion of the left side of the brain.
Researchers Transplant Human Neurons into Rat Brains
Katherine Irving | Oct 12, 2022 | 2 min read
The human cells, engineered to respond to blue light, influenced rat behavior when stimulated.
blue-gloved hands injecting mouse with syringe
Sex of Researcher Influences Ketamine’s Effects in Mice: Study
Shawna Williams | Sep 8, 2022 | 3 min read
The findings likely have implications for animal research far beyond the study of antidepressants.
Photograph of scientists working while wearing PPE
Contract Vivarium Facilities for Preclinical Discovery
The Scientist and Mispro | 3 min read
Researchers rent contract vivarium space for greater experimental control, productivity, and reproducibility when developing new therapeutics.
Profile view of a newborn piglet being held by a veterinarian dressed in green.
Federal Investigators Probe Possible Misconduct in Pig Research
Dan Robitzski | Aug 30, 2022 | 2 min read
A quintet of research papers, all involving subjecting newborn piglets to brain damage, have been retracted because the data can’t be substantiated.
Bright purple and orange lactobacillus bacteria.
How a Specific Gut Bacterium May Cause Type 1 Diabetes
Dan Robitzski | Aug 25, 2022 | 5 min read
A bacterium that produces an insulin-like peptide can give mice type 1 diabetes, and infection with the microbe seems to predict the onset of the disease in humans, a study finds.
A colored microscope image of a cross section of a human artery filled with fatty plaques
Protein-Recycling Process Protective Against Arterial Plaques
Clare Watson | Aug 1, 2022 | 2 min read
A team of scientists has found that in mice, a cellular housekeeping pathway protects against a major cause of heart attacks and strokes.
white rat on black background
Opinion: Hold Animal Use Committees Accountable for Their Failures
Lisa Jones-Engel | Jul 27, 2022 | 7 min read
As a former committee member who now advises PETA, I believe that claims that the identities of committee members must be kept secret to protect their safety are unfounded.
commercial airplane<br><br>
Air France Announces End to Research Monkey Transport
Andy Carstens | Jul 6, 2022 | 2 min read
The shift is likely to add to an ongoing shortage of primates used in labs, which could slow progress in future COVID-19 vaccine development and other areas.
Colin Blakemore
Neuroscientist Colin Blakemore Dies at 78
Lisa Winter | Jul 6, 2022 | 2 min read
The prolific science communicator specialized in studies of vision and brain plasticity and was the focus of threats from animal rights extremists for several years.
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.
A line of people wearing monkey masks and holding signs stand along a street
Opinion: Time to Take Animal Rights Harassment More Seriously
Jim Newman | Jun 17, 2022 | 5 min read
Two recent court rulings shine a light on the disturbing tactics used by some activists to target biomedical researchers who study animals.
Illustration of peach-colored microglia among light blue neurons. Both cell types are illustrated with multiple jagged extensions coming out of a spherical cell body.
Mouse Immune Cells Destroy Nerves’ Coating, Causing Chronic Pain
Patience Asanga | Jun 9, 2022 | 3 min read

A study suggests a way in which acute nerve injury could trigger an autoimmune response that leads to continuing pain in mice.

GFP highlighting mouse neurons
Science Snapshot: How Brains Handle Surprise Parties
Lisa Winter | Jun 3, 2022 | 1 min read
When unexpected events occur, norepinephrine signals mouse brains to pay attention to key details.
White rabbits are held in place with transparent restraints in a research laboratory
Lawsuit Alleges USDA Secretly Relaxed Animal Welfare Inspections
Dan Robitzski | Apr 7, 2022 | 5 min read
A Harvard Law School lawsuit filed on behalf of animal welfare organizations accuses the United States Department of Agriculture of offloading the burden of inspecting animal research sites to a private third party, resulting in a system that the lawsuit describes as largely self-policing and less rigorous.
Image of brain cells showing pyramidal neurons in green, astrocytes in red, and microglia in blue
Replacing Microglia Treats Neurodegenerative Disease in Mice
Shawna Williams | Mar 17, 2022 | 2 min read
Researchers find a way to wipe out the brain’s immune cell corps and send in new and improved versions.
Zebrafish with fluorescent nervous system in green.
Oust the Mouse: A Plan to Reduce Mammal Use in Drug Development
Natalia Mesa, PhD | Mar 15, 2022 | 7 min read
The Scientist spoke to Mount Desert Island Biological Laboratory’s Jim Strickland about the institute’s new MDI Bioscience initiative to perform more drug testing and development in nonmammalian models.
Artist’s rendering of a light purple Ebola virus looping around itself that’s surrounded by red blood cells
Ebola Lurking in Brain Fluid Kills Monkeys Weeks After Recovery
Dan Robitzski | Feb 9, 2022 | 4 min read
New research reveals where the virus was hiding and hints at how to truly purge it from the body.
Photo of Roxanne Beltran
Roxanne Beltran Dives into Seal Research
Lisa Winter | Jan 17, 2022 | 3 min read
This University of California, Santa Cruz, biologist is dedicated to her marine mammal research, as well as to making the field more diverse and equitable.
black mice in clear plastic cages with bedding
Australian Research Faces Impending Scarcity of Lab Rodents
Bianca Nogrady | Jul 20, 2021 | 7 min read
The Australian biomedical research community is stunned by the announced wind-down of the country’s biggest supplier of mice and rats.