Native American populations descend from three key migrations
Scientists have found that Native American populations from Canada to the southern tip of Chile arose from at least three migrations, with the majority descended entirely from a single group of First American ...
Disappearance of New Zealand birds 100 years ago makes life tough for plants: study
Delayed legacy of invasive species
Skulls show New World was settled twice: study
Two distinct groups from Asia settled in the New World and not one single migration as suggested by previous genetic studies, experts said Monday after comparing the skulls of early Americans.
Native Americans descended from a single ancestral group, DNA study confirms
For two decades, researchers have been using a growing volume of genetic data to debate whether ancestors of Native Americans emigrated to the New World in one wave or successive waves, or from one ancestral ...
Researchers find Asian needle ants displacing other aggressive invaders
Researchers from North Carolina State University have found that one of the most aggressive invasive ant species in the United States – the Argentine ant – appears to have met its match in the Asian needle ...
Ancient DNA reveals humans living 40,000 years ago in Beijing area related to present-day Asians, Native Americans
An international team of researchers including Svante Pääbo and Qiaomei Fu of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, sequenced nuclear and mitochondrial DNA that had ...
A global approach to monitoring biodiversity loss
In contrast to climate change, there is no coordinated global system in place for measuring and reporting on biodiversity change or loss. An international team of biologists is now addressing this gap.
Bumblebees do best where there is less pavement, more floral diversity
Landscapes with large amounts of paved roads and impervious construction have lower numbers of ground-nesting bumblebees, which are important native pollinators, a study from The University of Texas at Austin ...
Songbirds adapt to new urban environs thanks to rapid genetic evolution
(Phys.org)—Indiana University researchers have found evidence that a species of songbird that recently colonized an urban environment exhibits less stress and bolder behavior as compared to counterparts ...
Scientists find state record 87 eggs in largest python from Everglades
University of Florida researchers curating a 17-foot-7-inch Burmese python, the largest found in Florida, discovered 87 eggs in the snake, also a state record.
Invading crayfish success down to appetite and disease
The North American signal crayfish could be driving the native white-clawed crayfish from British waterways, because it eats more and is much less fussy about its food than the native critter.
DNA evidence offers proof of North American native population decline due to arrival of Europeans
Populations of invasive ants die out naturally, saving millions in control and eradication
(PhysOrg.com) -- New research shows populations of an invasive species of ants frequently collapse without human involvement, potentially saving millions of dollars on control and eradication.