Showing 20 articles starting at article 1801

< Previous 20 articles        Next 20 articles >

Categories: Anthropology: Early Humans, Biology: Microbiology

Return to the site home page

Biology: Microbiology
Published

Novel insecticides are bad news for bee health and their guts      (via sciencedaily.com) 

Insecticides containing flupyradifurone and sulfoxaflor can have devastating effects on honey bee health. The substances damage the insects' intestinal flora, especially when used in conjunction with a common fungicide, making them more susceptible to disease and shortening their life span. The two insecticides were considered harmless to bees and bumblebees when approved, but their use has since been severely restricted.

Anthropology: Cultures Anthropology: Early Humans Archaeology: General
Published

UK's oldest human DNA obtained, revealing two distinct Palaeolithic populations      (via sciencedaily.com) 

The first genetic data from Palaeolithic human individuals in the UK -- the oldest human DNA obtained from the British Isles so far -- indicates the presence of two distinct groups that migrated to Britain at the end of the last ice age, according to new research. Published today in Nature Ecology and Evolution, the new study by UCL Institute of Archaeology, the Natural History Museum and the Francis Crick Institute researchers reveals for the first time that the recolonisation of Britain consisted of at least two groups with distinct origins and cultures.

Biology: Microbiology
Published

Derbyshire fossil study reveals insights into Peak District's 12 million year-old climatic past      (via sciencedaily.com) 

A decade-long study into unique rocks near a Derbyshire village has been uncovering the secrets of what the county and the Peak District might have looked like under a much warmer and wetter past.

Anthropology: Cultures Anthropology: Early Humans Archaeology: General
Published

Meet the first Neanderthal family      (via sciencedaily.com) 

Researchers have managed to sequence multiple individuals from a remote Neanderthal community in Siberia. Among these thirteen individuals, the researchers identified multiple related individuals -- among these a father and his teenage daughter. The researchers were also able to use the thirteen genomes to provide a glimpse into the social organization of a Neanderthal community. They appear to have been a small group of close relatives, consisting of ten to twenty members, and communities were primarily connected through female migration.

Biology: Microbiology Environmental: Ecosystems
Published

Global hotspots for soil nature conservation are poorly protected      (via sciencedaily.com) 

Current protected areas only poorly cover the places most relevant for conserving soil ecological values. To assess global hotspots for preserving soil ecological values, an international team of scientists measured different facets of soil biodiversity (local species richness and uniqueness) and ecosystem services (like water regulation or carbon storage). They found that these facets peaked in contrasting regions of the world. For instance, temperate ecosystems showed higher local soil biodiversity (species richness), while colder ecosystems were identified as hotspots of soil ecosystem services. In addition, the results suggest that tropical and arid ecosystems hold the most unique communities of soil organisms. Soil ecological values are often overlooked in nature conservation management and policy decisions; the new study demonstrates where efforts to protect them are needed most.

Biology: Microbiology
Published

It takes guts: Fungus living inside cave crickets reveals fungal evolution steps      (via sciencedaily.com) 

A research group has found a new fungus from the group called Kickxellomycotina. The fungus, which was found on cave cricket feces, represents a new genus that inhabits the guts of animals -- a new discovery for this group of fungi. This finding indicates that this group evolved in connection with the animal gut; future studies will reveal the evolutionary stages between gut-inhabiting fungi and those with other life cycles.

Biology: Microbiology
Published

New antibiotic comes from a pathogenic bacterium in potatoes      (via sciencedaily.com) 

A multinational team of researchers in Europe report the discovery of a new antifungal antibiotic named solanimycin. The compound, initially isolated from a pathogenic bacterium that infects potatoes, appears to be produced by a broad spectrum of related plant pathogenic bacteria.

Biology: Microbiology
Published

Microbes that cause cavities can form superorganisms able to 'crawl' and spread on teeth      (via sciencedaily.com) 

Researchers found that the bacteria and fungi responsible for a severe form of childhood tooth decay together form 'superorganisms' with unexpected properties. The cross-kingdom groupings were more resistant to antimicrobials and physical removal than either species alone, sprouting 'limbs' to move as a group and spread rapidly on teeth.

Biology: Microbiology
Published

Genomic research aids in the effort to understand how best to treat deadly infections caused by a fungus      (via sciencedaily.com) 

Scientists have made a significant genetic discovery that sheds light on the use of the drug caspofungin to treat a deadly fungal infection, Aspergillus fumigatus, which kills some 100,000 severely immunocompromised people each year.

Anthropology: Early Humans
Published

A new route to evolution: How DNA from our mitochondria works its way into our genomes      (via sciencedaily.com) 

Scientists have shown that in one in every 4,000 births, some of the genetic code from our mitochondria -- the 'batteries' that power our cells -- inserts itself into our DNA, revealing a surprising new insight into how humans evolve. Researchers show that mitochondrial DNA also appears in some cancer DNA, suggesting that it acts as a sticking plaster to try and repair damage to our genetic code.

Biology: Microbiology
Published

Fungal association with tumors may predict worse outcomes      (via sciencedaily.com) 

The presence of some fungal species in tumors predicts -- and may even help drive -- worse cancer outcomes, according to a new study.

Biology: Microbiology
Published

Mycobiome atlas describes associations between cancers and fungi      (via sciencedaily.com) 

Scientists have created the first pan-cancer mycobiome atlas -- a survey of 35 types of cancer and their associated fungi.

Anthropology: Early Humans
Published

Dead fish breathes new life into the evolutionary origin of fins and limbs      (via sciencedaily.com) 

A trove of fossils in China, unearthed in rock dating back some 436 million years, have revealed for the first time that the mysterious galeaspids, a jawless freshwater fish, possessed paired fins.

Anthropology: Early Humans Paleontology: Early Mammals and Birds
Published

Revealing the genome of the common ancestor of all mammals      (via sciencedaily.com) 

An international team has reconstructed the genome organization of the earliest common ancestor of all mammals. The reconstructed ancestral genome could help in understanding the evolution of mammals and in conservation of modern animals. The earliest mammal ancestor likely looked like the fossil animal 'Morganucodon' which lived about 200 million years ago.

Biology: Microbiology
Published

Differences in fungus found in reared and wild ambrosia beetles suggest artificial method to prevent wilt disease in trees      (via sciencedaily.com) 

A recent study in Japan has found that reared ambrosia beetles, Euwallacea interjectus, can have symbiotic fungi different to those found in the wild. These findings suggest biocontrol implications for pest beetles that damage valuable crop trees such as fig trees.

Anthropology: Cultures Anthropology: Early Humans
Published

Key phases of human evolution coincide with flickers in eastern Africa's climate      (via sciencedaily.com) 

Interdisciplinary research in southern Ethiopia enabled the deciphering of eastern Africa's climatic heartbeat and shows how key phases of climate change influenced human evolution, dispersal and innovation.

Biology: Microbiology
Published

Fighting fungal infections with metals      (via sciencedaily.com) 

Researchers have demonstrated that chemical compounds containing special metals are highly effective in fighting dangerous fungal infections. These results could be used to develop innovative drugs which are effective against resistant bacteria and fungi.

Anthropology: Early Humans
Published

Exposing the evolutionary weak spots of the human genome      (via sciencedaily.com) 

Mutations can drastically help or hurt the odds of an organism surviving and reproducing. Researchers have created a computer program called ExtRaINSIGHT that tracks the history of harmful mutations throughout human evolution. They've discovered several regions of the genome are especially vulnerable to mutations, meaning any mutations there could lead to severe or lethal consequences.

Biology: Microbiology
Published

Study connects decomposing body's BMI to surrounding soil microbes      (via sciencedaily.com) 

Researchers investigated how the process of human body decomposition affected microbial life of the surrounding soil microbiome. One factor that may play an important role is body mass index (BMI), they report.

Anthropology: Cultures Anthropology: Early Humans Archaeology: General
Published

The anglo-saxon migration: New insights from genetics      (via sciencedaily.com) 

In the largest early-medieval population study to date, an interdisciplinary team consisting of geneticists and archaeologists analyzed over 400 individuals from ancient Britain, Ireland, Germany, Denmark and the Netherlands. The results show in detail one of the largest population transformations in the post-Roman world.