Boost of gene activity may help explain how arms and legs evolved in vertebrates.
Found in: Biology, Genes & Cells and Life
Researchers track thousands of bacterial generations to document the development of a trait nearly 25 years in the making. (p. 8)
Found in: Biology and Genes & Cells
In the middle of a cattle ranch near Gerlach, Nev., enclosed by a corrugated metal fence, are small pools of steaming water. Close to the surface of these pools, water temperatures reach about 90° Celsius; deeper down, it’s even hotter. Landowners have sectioned off the area around the pools and installed an overflow pipe to keep the water from seeping out and harming livestock or people.
Despite the dangers involved, one September day Joel Graham leaned over the barrier and plunged in his gloved hand to scoop up sediment and water samples.
At this locale, the biologist from the Universit... (p. 26)
Found in: Biology, Chemistry, Matter & Energy and Molecules
Ecologist Kate Langwig of Boston University and her colleagues want Eastern bats to listen up: No more cuddling — at least during hibernation. Just keep those wings to yourselves.
Found in: Behavior, Biology, Ecology and Science & Society
There has been a lot of research, recently, showing how global change — especially warming — can alter the habitat and preferred range of marine and terrestrial species. But rising levels of greenhouse gases can also, directly, do a number on agricultural ecosystems, a new study shows. At least for U.S.-grown rice, rising carbon dioxide levels give a preferential reproductive advantage to the weedy natural form — known colloquially as red rice (for the color of its seed coat).
Found in: Agriculture, Biology, Botany, Climate Change, Environment, Food Science, Nutrition and Science & Society
A study in mice links a high-fat diet to changes in the brain that might encourage weight gain. (p. 14)
Found in: Biology and Body & Brain
Biologists document surprising differences among deep-sea animals at hydrothermal vent fields. (p. 5)
Found in: Biology, Earth, Earth Science and Life
This story is being written by a person sitting in a bathtub. It doesn’t have water in it, because the person is fully dressed and typing on a laptop computer. This isn’t the most convenient place to work, with a file folder of notes propped on a soap dish and awkward conversations when someone else in the house thumps on the door and asks what's taking so long. Bathtubs, however, are very comforting for people writing about tiny, crawling bugs that suck blood. That’s why I’ve chosen a bathtub as a place to write about bedbugs. Visit the new Science News for Kids websi...
Found in: Biology, Ecology, Environment, Science & Society and Science News For Kids
You may not be familiar with the word tetrapod, but you know one when you see it. All tetrapods are vertebrates — animals with backbones — and most move on land. They also have four limbs — or their ancestors did, as in the case of snakes and whales, for example. Reptiles, birds and amphibians all count as tetrapods, as do mammals. You’re a tetrapod. By studying fossils, scientists know that tetrapods haven’t always roamed Earth. Now, biologists have found evidence that animals were preparing to walk while still living underwater.
Visit the new Science News for Kids webs...
Found in: Biology and Science News For Kids
The more things change, the more they stay the same, as a Dec. 29 Associated Press report on genetically engineered corn notes. Like déjà vu, this news story on emerging resistance to Bt toxin — a fabulously effective and popular insecticide to protect corn — brings to mind articles I encountered over the weekend while flipping through historic issues of Science News. More than a half-century ago, our magazine chronicled, real time, the emergence of resistance to DDT, the golden child of pest controllers worldwide. Now much the same thing is happening again with Bt, its contemporary agricultural counterpart. Will we never learn?
Found in: Agriculture, Biology, Botany, Environment and Science & Society