Search Results for: Salamander

Open the calendar Use the arrow keys to select a date

Can’t find what you’re looking for? Visit our FAQ page.

310 results

  1. Dawn of the Dinosaurs

    Paleontologists probe the majestic reptiles’ origin and rise.

    By Alexandra Witze
  2. Animals

    A little climate change goes a long way in the tropics

    In hot places, even minor warming could rev up metabolism in animals that don’t generate their own heat, a new analysis suggests.

    By Susan Milius
  3. Life

    Salamanders don’t regrow limbs from scratch

    A closer look at regeneration in axolotl amputees shows that tissue replacement relies on cellular “memory.”

    By Tina Hesman Saey

  4. Starting Anew

    Scientists turn to lowly creatures to unlock the secrets of regeneration.

    By Susan Gaidos

  5. Smart from the start

    Animal embryos get some respect for their survival skills.

    By Susan Milius
  6. Life

    2009 Science News of the Year: Genes & Cells

    Cancer-fighting roles Scientists have discovered a new role in cancer protection for an already well-known tumor suppressor protein. The protein, called p53, protects cells from becoming cancerous by sensing stress and either shutting down cell division or triggering cell death. Researchers at the University of Tokyo and colleagues have discovered that p53 also plays a […]

    By Science News
  7. Life

    Tiny bird, tiny genome

    Study finds hummingbirds have pared-down DNA.

    By Rachel Ehrenberg
  8. Life

    Step-by-step Evolution

    Hard to find, but very fruitful when found, transitional fossils fill in the gaps in the paleontological record.

    By Sid Perkins
  9. Life

    Mosquito fish count comrades to stay alive

    New experiments indicate that mosquito fish can count small numbers of companions swimming in different groups, an ability that apparently evolved to assist these fish in avoiding predators.

    By Bruce Bower

  10. From Science News Letter, September 13, 1958

    RNA INFLUENCES CELL DIFFERENTIATION — Ribonucleic acid has been pinpointed as having an essential role in cell differentiation, the process by which the early embryo’s look-alike cells become nerve, bone, skin and other organs. Working with extremely small quantities of cellular material, 20 to 50 cells, taken from embryonic newt and salamander tissue, Dr. M. C. Niu […]

    By Science News
  11. Ecosystems

    Flowering plants welcome other life

    When angiosperms diversified 100 million years ago, they opened new niches for ants, plants and frogs.

    By Rachel Ehrenberg

  12. Dressing up dinos

    Adding soft tissue to bone helps scientists, paleoartists bring ancient creatures to life.

    By Sid Perkins