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“#Detection of endocrine disruptors in the fetal brain of a Japanese macaque” Concentrations (pg g−1) of OH-PCBs in the brain, liver, and placenta of a Japanese macaque fetus. Credit: Center for Marine Environmental Studies (CMES), Ehime University A new study of the Japanese macaque (Macaca fuscata) as a model animal for the fetal transfer of…
“#Leviathan task: saving the whales in Dublin’s ‘dead zoo’” Dismantling two hanging whale skeletons for renovation work is no small feat A huddle of specialised staff at Dublin’s “dead zoo” perform a high-wire puzzle, delicately disassembling two whale skeletons that have dangled airborne for over a century. Nigel Monaghan, who as keeper of the Natural…
“#Ammonium triggers formation of lateral roots” Localized ammonium supply enhances the import and accumulation of shoot-derived auxin into the root vasculature, generating an auxin source for lateral auxin movement. AMT-dependent ammonium uptake stimulates proton release, leading to apoplastic acidification and protonation of auxin (IAA) to IAAH, which diffuses from the vasculature to outer root cells…
“#How plants ensure regular seed spacing” Seeds in different bean and pea pods (top: snow pea pod; mid: princess beans; bottom: runner beans). The research team has clarified why the spacing between the seeds is so similar in each pod and how the spacing relates to fruit size. Credit: HHU / Nozomi Kawamoto An international…
“#Researchers ID chemical that influences songbirds’ song choice” Credit: CC0 Public Domain New research in songbirds sheds more light on the decision-making process in the brain. In this study, researchers discovered that sensory input from the locus coeruleus—the area of the brainstem known primarily for mediating arousal and modulation of sensory processing—has a direct impact…
“#Swimming with whales: You must know the risks and when it’s best to keep your distance” Credit: Shutterstock/anna sanfeliu gozalvez Three people were injured last month in separate humpback whale encounters off the Western Australia coast. The incidents happened during snorkeling tours on Ningaloo Reef when swimmers came too close to a mother and her…
“#Baboon matriarchs enjoy less stress” Born to rule and rarely challenged, alpha female baboons have lower levels of stress hormones than their dominant male counterparts or other females. Credit: Matthew Zipple, Duke University. You know the type: Loud. Swaggering. Pushy. The alpha male clearly runs the show. Female alphas are often less conspicuous than their…
“#Wild cousins may help crops battle climate change” A cross pollination is made by the field team in Lebanon to bring together modern varieties with wild relatives. Credit: Michael Major Earth is getting hotter. Huge amounts of greenhouse gases are warming the planet and altering the climate. Heat waves are harsher. Droughts are longer. And…
“#Cashing in on marine byproducts” Professor Kirsten Heimann and Dr Trung Nguyen, from the Centre for Marine Bioproducts Development at Flinders University, testing southern rocklobster shells with the Flinders vortex fluidic device processor to produce a pure protein powder. Credit: Flinders University As exploitation of wild fisheries and marine environments threaten food supplies, Flinders University…
“#Acorn woodpeckers wage days-long battles over vacant territories, radio tag data show” A photograph of an acorn woodpecker with radiotag. Credit: Sahas Barve When acorn woodpeckers inhabiting high-quality territories die, nearby birds begin a battle royal to win the vacant spot. Researchers used radio tags to understand the immense effort woodpecker warriors expend traveling to…