neurodegeneration, ecology
Image of the Day: Aging Brain Cells
Image of the Day: Aging Brain Cells
The Scientist Staff | Mar 13, 2018
Scientists identified a gene involved in the age-related deterioration of mouse neural stem cells.
Hawaiian Spiders on Different Islands Evolved Same Disguise in Parallel
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.
Study Finds No Neurogenesis in Adult Humans’ Hippocampi
Study Finds No Neurogenesis in Adult Humans’ Hippocampi
Ashley Yeager | Mar 7, 2018
Failure to produce evidence of neural precursor cells and immature neurons raises questions about the role of the process in learning and memory.
Prosthetic Retinas Help Blind Mice See
Prosthetic Retinas Help Blind Mice See
Ashley Yeager | Mar 6, 2018
Artificial photoreceptors made of nanowires help restore blind animals’ sensitivity to light.
Paradise Regained: How the Palmyra Atoll Got Rid of Invasive Mosquitoes
Paradise Regained: How the Palmyra Atoll Got Rid of Invasive Mosquitoes
Ruth Williams | Feb 28, 2018
The elimination of the biting pests was an added bonus after researchers unleashed a rat-eradication endeavor on the tiny islands.  
Amazonian Fish Genome Challenges Long-Held Assumptions About Asexual Reproduction
Amazonian Fish Genome Challenges Long-Held Assumptions About Asexual Reproduction
Jim Daley | Feb 15, 2018
Poecilia formosa, an all-female fish species, has a surprisingly robust genome. 
Researchers Develop Potential Blood Test for Alzheimer’s Disease
Researchers Develop Potential Blood Test for Alzheimer’s Disease
Catherine Offord | Feb 2, 2018
The test uses levels of plasma amyloid-β to estimate the buildup of protein plaques in the brain.
Researchers Catalog Earth’s Microbiome
Researchers Catalog Earth’s Microbiome
Katarina Zimmer | Feb 1, 2018
The new database includes data from 27,000 samples collected at sites ranging from Alaskan permafrost to the ocean floor.
Scientists Unite to Save “Monkey Island” After Hurricane Maria
Scientists Unite to Save “Monkey Island” After Hurricane Maria
Shawna Williams | Feb 1, 2018
Puerto Rico’s Cayo Santiago has hosted decades of research in cognition, primatology, immunization, and other areas.
Cellular Senescence in Astrocytes May Play Central Role in Parkinson’s Disease
Cellular Senescence in Astrocytes May Play Central Role in Parkinson’s Disease
Katarina Zimmer | Jan 24, 2018
The elimination of these glia in the mouse brain ameliorated the development of Parkinsonian neuropathologies induced by the pesticide toxin paraquat.