Ohio University researchers announced a new species of mammal from the Age of Dinosaurs, representing the most complete mammal from the Cretaceous Period of continental Africa, and providing tantalizing insights into the past diversity of mammals on the planet.
An international study co-led by researchers from the Spanish National Research Council (CSIC) at the Institute of Evolutionary Biology (IBE) and Harvard University (USA) has developed a genetic map of the Iberian Peninsula covering the last 8,000 years.
A new study is using observations made by Henry David Thoreau -- 19th-century American naturalist, social reformer, and philosopher -- to explore the effects of climate change on tree leaf-out and, as a result, the emergence of spring wildflowers.
The University of Huddersfield's Archaeogenetics Research Group joins an international team to conduct the largest-ever study of ancient DNA from the Iberian Peninsula (Spain and Portugal) which suggests that the Iberian male lineages were almost completely replaced between 4,500 and 4,000 years ago by newcomers originating on the Russian steppe.
In the Mesorhabditis belari roundworm, the sole purpose of males is to help females produce clones of themselves. This unique form of reproduction was recently described by researchers from the CNRS, l'ENS de Lyon, l'Université Claude Bernard Lyon 1, and the Muséum national d'Histoire naturelle in an article published on March 15, 2019, in the journal Science.
Scientists have asked, 'What is the primary driver in tropical forest diversity-competition for resources, or herbivore pests?' For the first time, University of Utah biologists compared the two mechanisms in a single study. The team analyzed how neighboring trees influence the growth and survival of nine coexisting species of the tree genus Inga in the Panama rainforest. They found that pests and the plant defenses against them drive diversity in tropical rainforests.
Diet-induced changes in the human bite resulted in new sounds such as 'f' in languages all over the world, a study by an international team led by researchers at the University of Zurich has shown. The findings contradict the theory that the range of human sounds has remained fixed throughout human history.
Despite being widely distributed across north and central South America, the small family of similarly looking bald-legged spiders had never been confirmed in Colombia. However, a new research paper, published in the open-access journal ZooKeys, describes a total of six previously unknown species inhabiting the country, with four of them belonging to a new genus named Stormtropis -- after the clone trooper army in the famous Star Wars franchise.
A research team led by the Max Planck Institute for Evolutionary Anthropology and the German Centre for Integrative Biodiversity Research investigated whether chimpanzee behavioral diversity is reduced when there is high human impact on their habitats. By comparing sets of chimpanzee behaviors across a large number of social groups exposed to different levels of human disturbance, the scientists found a reduction in behavioral diversity when human impact was high. The results of the study were published this week in the journal Science.
'Great Dying' extinction survivors appear to have shared many of the same ecological roles as their predecessors, with one catch -- there was a surge in the number of individuals with more modern traits. These hardy stand-outs did a better job of driving recovery, making ongoing ecological interactions more intense. Insights into this ancient marine system and its occupants can help guide modern conservation in identifying Earth's most resilient species in the face of environmental stress.