Latest Biology News & Discoveries: Cutting-Edge Research in Life Sciences - SciTechDaily

1. Why Great White Sharks’ DNA Doesn’t Add Up
   Great white sharks hold a baffling genetic puzzle: uniform nuclear DNA but divided mitochondrial DNA that defies migration and evolution theories. White sharks show a striking mismatch between the DNA inside their cell nuclei and the DNA within their mitochondria. For years, scientists believed this could be explained by the way great whites migrate. A [...]
2. DNA Evidence Reveals Herbivores Eat Far More Than Just Grass
   A federally funded study led by biologists at Brown University has revealed that the diets of various large herbivore species are more varied and complex than scientists had previously understood. For generations, both scientists and students have sorted animals into categories based on diet: carnivores eat meat, browsers feed on flowering plants, conifers, and shrubs, [...]
3. 400 Years After Their Discovery, Red Blood Cells Continue To Astonish Scientists
   Penn researchers have revealed that red blood cells, not just platelets, play an active role in clot contraction. For years, scientists believed that red blood cells simply tagged along during clot formation without doing much. A new study from the University of Pennsylvania now shows they play an active part in helping clots tighten and [...]
4. Parts of the Brain Defy Aging and Even Improve Over Time
   New high-resolution brain scans reveal that while some parts of the cerebral cortex thin with age, others remain stable—or even grow thicker—especially in regions that process touch. Researchers found that brain layers age at different speeds, with the most-used layers showing surprising resilience and adaptability. These findings challenge the idea that reduced brain volume always [...]
5. How Recharging the Brain’s “Batteries” Restored Lost Memory
   Mitochondria are tiny structures inside our cells that supply the energy our bodies need to survive, and scientists are steadily uncovering more about how they work. A new study in Nature Neuroscience, led by researchers at Inserm and the University of Bordeaux’s NeuroCentre Magendie in partnership with the Université de Moncton in Canada, has for [...]