feed info

30 articles from ScienceDaily

Virus plus microplastics equal double whammy for fish health

Microplastics -- tiny particles generated as plastics weather and fragment -- pose a growing threat to ecosystem and human health. A new laboratory study shows these threats extend beyond direct physical or chemical impacts, revealing that the presence of microplastics increases the severity of an important viral fish disease.

Click beetle-inspired robots jump using elastic energy

Researchers have made a significant leap forward in developing insect-sized jumping robots capable of performing tasks in the small spaces often found in mechanical, agricultural and search-and-rescue settings. A new study demonstrates a series of click beetle-sized robots small enough to fit into tight spaces, powerful enough to maneuver over obstacles and fast enough to match an insect's rapid...

Can elephants save the planet?

Researchers report that elephants play a key role in creating forests which store more atmospheric carbon and maintaining the biodiversity of forests in Africa. If the already critically endangered elephants become extinct, rainforest of central and west Africa, the second largest rainforest on earth, would lose between six and nine percent of their ability to capture atmospheric carbon,...

New tool uses ultrasound 'tornado' to break down blood clots

Researchers have developed a new tool and technique that uses 'vortex ultrasound' -- a sort of ultrasonic tornado -- to break down blood clots in the brain. The new approach worked more quickly than existing techniques to eliminate clots formed in an in vitro model of cerebral venous sinus thrombosis (CVST).

Targeted test for antibiotic resistance in clinical Enterobacter species

Bacteria of the genus Enterobacter are among the most dangerous bacteria associated with hospital infections worldwide. Some of their representatives are highly resistant to commonly used antibiotics, so that the reserve antibiotic colistin is increasingly used as a last resort therapy option. To avoid unnecessary reliance on colistin and risk increasing resistance, bacteria are tested for...

New discovery: Endangered Amami rabbit disperses seeds for non-photosynthetic plant

Seed dispersal is an essential process for the evolution and ecology of terrestrial plants, making discoveries of uncommon seed dispersal agents particularly interesting. Scientists now reveal that the Amami rabbit (Pentalagus furnessi) is a major seed dispersal agent for the non-photosynthetic plant Balanophora yuwanensis. To the best of our knowledge, this is the first known instance of rabbits...

Agriculture linked to changes in age-independent mortality in North America

The transition to agriculture from hunting and gathering in pre-colonial North America led to changes in age-independent mortality, or mortality caused by factors that are not associated with age, according to a new study. The team found that the intensification of crop use occurred in two phases, the first of which led to a decline in human age-independent mortality, while the second is...

Our memory for objects might be better than we think

The next time you're struggling to remember exactly where you left your keys, parked your car or put down your glasses, don't necessarily give up on your memory completely. Previous research has shown that, if people are shown a large number of objects, they are very good at subsequently remembering which objects they have seen.

Darkest view ever of interstellar ices

Astronomers used observations from the James Webb Space Telescope (JWST) to achieve the darkest ever view of a dense interstellar cloud. These observations have revealed the composition of a virtual treasure chest of ices from the early universe, providing new insights into the chemical processes of one of the coldest, darkest places in the universe as well as the origins of the molecules that...

Young chimpanzees and human teens share risk-taking behaviors

Adolescent chimpanzees share some of the same risk-taking behaviors as human teens, but they may be less impulsive than their human counterparts, according to new research. The study gets at age-old nature/nurture questions about why adolescents take more risks: because of environment or because of biological predispositions?