Sunday, 28 September 2025

Underbite regained: Species feared extinct is the only frog with true teeth on its lower jaw

Added: 10.11.2021 15:45 | 254 views | 0 comments

In a new study, biologists laid to rest a century-old debate by confirming that a single species of frog, out of the more than 7,000 living today, has true teeth on its lower jaw.

Tags: Teeth

Source: feeds.sciencedaily.com

Can't find your keys? You need a chickadee brain

Added: 10.11.2021 3:20 | 285 views | 0 comments

Researchers have shown that there is a genetic component underlying the amazing spatial memories of Mountain Chickadees. Although the genetic basis for spatial memory has been shown for humans and other mammals, direct evidence of that connection has never before been identified in birds.

Tags: Beer , Genes , Mountains

Source: feeds.sciencedaily.com

Fossil elephant cranium reveals key adaptations that enabled its species to thrive as grasslands spread across eastern Africa

Added: 10.11.2021 3:20 | 172 views | 0 comments

A remarkably well-preserved fossil elephant cranium from Kenya is helping scientists understand how its species became the dominant elephant in eastern Africa several million years ago, a time when a cooler, drier climate allowed grasslands to spread and when habitually bipedal human ancestors first appeared on the landscape.

Tags: Africa , Elephants , Fire , Scientists

Source: feeds.sciencedaily.com

Biodiversity ‘time machine’ uses artificial intelligence to learn from the past

Added: 10.11.2021 3:20 | 172 views | 0 comments

Experts can make crucial decisions about future biodiversity management by using artificial intelligence to learn from past environmental change, according to new research.

Source: feeds.sciencedaily.com

Research finds key advances towards reducing the cost of plant improvement

Added: 09.11.2021 20:52 | 213 views | 0 comments

Crop improvement often involves the transfer of genetic material from one organism to another to produce a valuable trait. Some major examples of crops with these so-called 'transgenes' include disease-resistant cotton and beta-carotene-enhanced golden rice. However, when foreign DNA is introduced into a host organism, a natural defensive response in plants is to repress or silence the expression of the unfamiliar genetic material. This 'silencing,' a process known to involve DNA methylation, is a multimillion-dollar problem in the global agricultural improvement industry.

Tags: Genes , Gold

Source: feeds.sciencedaily.com

Scanning a single protein, one amino acid at a time

Added: 09.11.2021 20:05 | 182 views | 0 comments

Using nanopore DNA sequencing technology, researchers have managed to scan a single protein: by slowly moving a linearized protein through a tiny nanopore, one amino acid at the time, the researchers were able to read off electric currents that relate to the information content of the protein. The new single-molecule peptide reader marks a breakthrough in protein identification, and opens the way towards single-molecule protein sequencing and cataloguing the proteins inside a single cell.

Tags: Mars , OPEC , Technology

Source: feeds.sciencedaily.com

New insights into how the infant microbiome impacts early childhood behavior in boys and girls

Added: 09.11.2021 20:05 | 179 views | 0 comments

A new study has found a direct and sex-specific association between the composition of infant microbiome and early childhood behavioral health.

Source: feeds.sciencedaily.com

Female finches are picky but pragmatic when choosing a mate

Added: 09.11.2021 20:05 | 184 views | 0 comments

Female zebra finches are choosy but flexible when it comes to finding a mate, allowing them to avoid the fitness costs of being too selective when competition for males is high, researchers report.

Source: feeds.sciencedaily.com

Montana Lake study reveals how invasive species affect native food webs

Added: 09.11.2021 20:05 | 179 views | 0 comments

Invasive species cause biodiversity loss and about $120 billion in annual damages in the U.S. alone. Now, thanks to a new collaborative study, there is greater insight into how invasive species progressively affect native food webs in mountain lakes.

Tags: Lost , Mountains , NATO

Source: feeds.sciencedaily.com

Single molecule controls unusual ants’ switch from worker to queen-like status

Added: 09.11.2021 20:05 | 179 views | 0 comments

Depending on the outcome of social conflicts, ants of the species Harpegnathos saltator do something unusual: they can switch from a worker to a queen-like status known as gamergate. Now, researchers have made the surprising discovery that a single protein, called Kr-h1, responds to socially regulated hormones to orchestrate this complex social transition.

Tags: Gamers , Workers

Source: feeds.sciencedaily.com

Revealing the ramifications of ocean acidification for coralline algae

Added: 09.11.2021 20:05 | 183 views | 0 comments

Researchers have revealed that most coralline algae experience negative effects from ocean acidification. Analysis of previous studies showed that changes in ocean chemistry can lead to declines in calcification rates, abundance, growth, and recruitment of coralline algae, but some species showed greater resilience than others. Ocean acidification was revealed as an important driver of change and the physiology of different species determined their response to changing conditions.

Source: feeds.sciencedaily.com

Forests could be key to estuarine fish conservation

Added: 09.11.2021 20:05 | 177 views | 0 comments

The diversity of threatened fish in estuaries increases when surrounded by forest cover, whereas estuaries surrounded by farmland show the opposite effect.

Source: feeds.sciencedaily.com

Experimental drug boosts immunotherapy effectiveness in pancreatic cancer in mice

Added: 09.11.2021 20:05 | 198 views | 0 comments

An experimental drug enhanced the benefit of an immunotherapy to fight pancreatic cancer in mice by increasing the number of immune cells in the immediate vicinity of the tumor, leading to a reduction in tumor growth, and in some mice, eliminating their cancer.

Source: feeds.sciencedaily.com

Impaired wild mice survive and thrive as well as unimpaired counterparts

Added: 09.11.2021 20:05 | 178 views | 0 comments

A new study assessed 26 years of monitoring data on wild populations of white-footed mice -- representing more than 27,244 animals -- and found that mice with missing or deformed limbs, tails, or eyes persisted at a rate similar to their unimpaired counterparts.

Source: feeds.sciencedaily.com

It takes cellular teamwork to heal the intestine

Added: 09.11.2021 20:05 | 168 views | 0 comments

A meticulous single-cell analytical approach to study the repair process of rotavirus-caused injury in an animal model revealed that the damaged epithelium contains a variety of cell types involved in repairing it through broad coordinated responses that ultimately heal the damaged tissue.

Source: feeds.sciencedaily.com

History of insect invasions offer insight into the future

Added: 09.11.2021 20:05 | 192 views | 0 comments

Results from a recently published study suggest that efforts to reduce biological hitchhiking on live plant imports, often referred to as 'biosecurity,' are working. However, more than a century of invasion by Hemiptera insects also suggests that increased trade might offset the effects of improved biosecurity. As many as 25 percent of invading Hemiptera insects may have yet to be detected in the nation's forests and agricultural fields.

Source: feeds.sciencedaily.com

A quick, high-yield synthesis of molnupiravir, an investigational COVID antiviral pill

Added: 09.11.2021 20:05 | 181 views | 0 comments

Molnupiravir is an investigational oral antiviral being developed for the treatment of COVID-19, and has been submitted for review by the U.S. Food and Drug Administration. Researchers now report that they have engineered enzymes to help manufacture the pill, resulting in a much shorter and higher-yielding synthesis than current methods.

Tags: Beer

Source: feeds.sciencedaily.com

Social motivation in voles differs by species and sex

Added: 09.11.2021 20:05 | 183 views | 0 comments

Being with friends and family may be a positive experience for some voles but it is merely tolerable to others, suggests a new study.

Source: feeds.sciencedaily.com

A commonly found parasite could treat certain types of cancer, say scientists

Added: 09.11.2021 20:05 | 203 views | 0 comments

Scientists have discovered that a deadly parasite, known to cause ill health in pregnant women and immunocompromised patients, could potentially be used to treat various types of tumors.

Tags: Cancer , Scientists , Women

Source: feeds.sciencedaily.com

C4 bioenergy grass: Working towards higher productivity under fluctuating light

Added: 09.11.2021 20:05 | 191 views | 0 comments

Biologists evaluated limitations to photosynthetic efficiency of bioenergy grass species during fluctuating light.

Source: feeds.sciencedaily.com

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