ScienceDaily: Top Environment News |
- Bats change strategy when food is scarce
- Mantle plumes crack continents
- Breast vs. bottle feeding in rhesus monkeys: Marked difference in intestinal bacteria, immunologic development
- Dreadnoughtus: Gigantic, exceptionally complete sauropod dinosaur
- How good is the fossil record? New study casts doubt on their usefulness
- 'Anchor' that keeps proteins together discovered
- First Neanderthal rock engraving found in Gibraltar: Abstract art older than thought?
- Better regulations needed for deep-sea biology
- Adjusting to Climate Change: Adapt or Face 'Worst Case Scenario'
- Ancient mammal relatives were active at night 100 million years before origin of mammals
- Climate change science aided by huge but 'invisible' efforts of amateurs
- New deep sea mushroom-shaped organisms discovered
- New, inexpensive method for understanding earthquake topography
- Exposure of pregnant women to certain phenols may disrupt growth of boys during fetal development and first years of life
- New treatment options for staph infections, inflammatory diseases
- Potential for 'in body' muscle regeneration, rodent study suggests
| Bats change strategy when food is scarce Posted: 04 Sep 2014 08:12 AM PDT Bats could be more flexible in their echolocation behavior than previously thought, according to a new study into the foraging techniques of the desert long-eared bat. Gleaning bats usually have long ears for the detection of faint sound cues and low wing loading to allow them to carry heavy loads -- features that increase drag and are linked to slower flight. So why would bats adapted to one foraging mode (gleaning), adopt another (hawking)?       |
| Mantle plumes crack continents Posted: 04 Sep 2014 07:38 AM PDT Using a simulation with an unprecedentedly high resolution, Earth scientists have shown that magma columns in the Earth's interior can cause continental breakup -- but only if the Earth's skin is already taut.  |
| Posted: 04 Sep 2014 06:30 AM PDT Infant rhesus monkeys receiving different diets early in life develop distinct immune systems that persist months after weaning, a study has shown. While the researchers expected different diets would promote different intestinal bacteria (microbiota), they were surprised at how dramatically these microbes shaped immunologic development. Specifically, breast-fed macaques had more "memory" T cells and T helper 17 (TH17) cells, which are known to fight Salmonella and other pathogens.  |
| Dreadnoughtus: Gigantic, exceptionally complete sauropod dinosaur Posted: 04 Sep 2014 06:30 AM PDT The new 65-ton (59,300 kg) dinosaur species Dreadnoughtus schrani is the largest land animal for which body mass can be accurately calculated. Its skeleton is the most complete ever found of its type, with over 70 percent of the bones, excluding the head, represented. Because all previously discovered supermassive dinosaurs are known from relatively fragmentary remains, Dreadnoughtus offers an unprecedented window into the anatomy and biomechanics of the largest animals to ever walk the Earth.  |
| How good is the fossil record? New study casts doubt on their usefulness Posted: 04 Sep 2014 05:46 AM PDT Do all the millions of fossils in museums around the world give a balanced view of the history of life, or is the record too incomplete to be sure? This question was first recognized by Charles Darwin and has worried scientists ever since.  |
| 'Anchor' that keeps proteins together discovered Posted: 04 Sep 2014 05:45 AM PDT All organisms react to different external and internal stimuli: if, for example, the hyphae fungus Sordaria macrospora is supplied with food, it produces fruiting bodies as part of its oestrous cycle. To initiate this reaction, signals have to be transmitted within the cell, which are conveyed by proteins. Physical proximity is a fundamental requirement, and generating that proximity is what scaffolding proteins do. Biologists have now discovered a new scaffold protein in hyphae fungi.  |
| First Neanderthal rock engraving found in Gibraltar: Abstract art older than thought? Posted: 04 Sep 2014 05:45 AM PDT The first example of a rock engraving attributed to Neanderthals has been discovered in Gorham's Cave, Gibraltar. Dated at over 39,000 years old, it consists of a deeply impressed cross-hatching carved into rock. Its analysis calls into question the view that the production of representational and abstract depictions on cave walls was a cultural innovation introduced into Europe by modern humans. On the contrary, the findings support the hypothesis that Neanderthals had a symbolic material culture.  |
| Better regulations needed for deep-sea biology Posted: 04 Sep 2014 05:45 AM PDT Although we know relatively little about the deep sea, we do extract raw materials for electronics and medicines from it. Biologists describe the history of deep-sea biology and give some pointers on how to protect this remarkable but rather inaccessible area.  |
| Adjusting to Climate Change: Adapt or Face 'Worst Case Scenario' Posted: 04 Sep 2014 05:44 AM PDT New findings suggest battling climate change could be a challenge, urge the global community to transform its energy system or face grim consequences.  |
| Ancient mammal relatives were active at night 100 million years before origin of mammals Posted: 03 Sep 2014 05:41 PM PDT New study reveals that nocturnality has older origin than previously thought. Synapsids, living about 300 million years ago, were probably active at night.  |
| Climate change science aided by huge but 'invisible' efforts of amateurs Posted: 03 Sep 2014 01:36 PM PDT Hundreds of thousands of volunteer data collectors are due for some thanks from scientists, according to a new paper that reveals the role of citizen science in studies of birds and climate change.  |
| New deep sea mushroom-shaped organisms discovered Posted: 03 Sep 2014 01:26 PM PDT Scientists have discovered two new species of sea-dwelling, mushroom-shaped organisms. The new organisms are multicellular and mostly non-symmetrical, with a dense layer of gelatinous material between the outer skin cell and inner stomach cell layers.  |
| New, inexpensive method for understanding earthquake topography Posted: 03 Sep 2014 01:24 PM PDT Using high-resolution topography models not available in the past, geologists can greatly enrich their research. However, current methods of acquisition are costly and require trained personnel with high-tech, cumbersome equipment. In light of this, scientists have developed a new system that takes advantage of affordable, user-friendly equipment and software to produce topography data over small, sparsely vegetated sites at comparable (or better) resolution and accuracy to standard methods.  |
| Posted: 03 Sep 2014 09:18 AM PDT Medical researchers have found that exposure to certain common phenols during pregnancy, especially parabens and triclosan, may disrupt growth of boys during fetal growth and the first years of life. Parabens are commonly used as preservatives in cosmetics and healthcare products and triclosan are an antibacterial agent and pesticide found in some toothpastes and soaps.  |
| New treatment options for staph infections, inflammatory diseases Posted: 02 Sep 2014 05:51 PM PDT Biochemists have discovered a family of proteins that could lead to better treatments for Staphylococcus aureus, a pathogenic bacterium that can cause more than 60,000 potentially life-threatening infections each year.  |
| Potential for 'in body' muscle regeneration, rodent study suggests Posted: 02 Sep 2014 11:32 AM PDT What if repairing large segments of damaged muscle tissue was as simple as mobilizing the body's stem cells to the site of the injury? New research in mice and rats suggests that "in body" regeneration of muscle tissue might be possible by harnessing the body's natural healing powers.  |
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