Researchers in Australia have developed a model to help build plant communities that are more resilient to climate change.
A new study shows that in repeated interactions winning strategies are either partners or rivals, but only partners allow for cooperation.
The pin mold fungus Phycomyces blakesleeanus forms a dense forest of vertically growing fruiting bodies, but how does it know which way is 'up'? New research publishing April 24 in the open-access journal PLOS Biology, from Gregory Jedd's group at the Temasek Life Sciences Laboratory, National University of Singapore, reveals that the fungi have acquired and re-modeled a gene from bacteria to help them make large gravity-sensing crystals.
A team of scientists from Arizona State University's School of Molecular Sciences has begun re-thinking the evolutionary history of photochemical reaction centers (RCs). Their analysis was recently published online in Photosynthesis Research and describes a new pathway that ancient organisms may have taken to evolve the great variety of photosynthetic RCs seen today across bacteria, algae, and plants. The study will go into print later this summer in a special issue dedicated to photochemical reaction centers.
Unlike most hermit crabs, the blanket-hermit crab does not use empty shells for protection, and instead lives symbiotically with a sea anemone. The crab uses the anemone to cover its soft abdomen, and can pull the anemone's tissue over its head to protect itself whenever necessary. Since 1888, this crab had been considered a unique species until a research team recently described five new ones and a new genus in the open access journal ZooKeys.
By using network analysis to search for communities of marine life in the fossil records of the Paleobiology Database, the team, including researchers at Rensselaer Polytechnic Institute, was able to quantify the ecological impacts of major events like mass extinctions and may help us anticipate the consequences of a 'sixth mass extinction.'
Biologists have been puzzled by the evolutionary adaptation behind a common tooth trait of northern Asians and Native Americans: shovel-shaped incisors. A UC Berkeley analysis of archeological specimens shows that nearly 100 percent of early Native Americans had shoveled incisors, and genetic evidence pinpoints the selection to the Beringian standstill 20,000 years ago. Leslea Hlusko proposes that a trait linked to shoveling, mammary duct growth, was selected to provide vitamin D and fat to infants.
A new study of guenon monkeys in Gombe National Park is the first to provide genetic evidence of ongoing mating between two distinct species. These monkeys have successfully been producing hybrid offspring for hundreds maybe even thousands of years. Prior studies have suggested that the different physical characteristics of these monkeys keeps them from interbreeding. So, if their faces don't match, they shouldn't be mating, right? Wrong, according to this latest evidence.
Researchers have used a scanner designed for rockets to collect the first-ever computed tomography (CT) scan of an entire minke whale. By combining the CT scan results with custom-developed computer simulation tools, the researchers model how the whales hear sounds produced by other whales or by human-created (anthropogenic) sources such as ship propellers.
A new study takes a comparative approach to pinpoint what happens differently in humans versus other animals to explain why they can successfully regenerate neurons while we instead form scar tissue. By learning from the similarities and differences, researchers hope to find new leads in the treatment of spinal cord injury.