Laden...
ScienceDaily: Plants & Animals News |
| First dinosaur era crab fully preserved in amber discovered Posted: 20 Oct 2021 12:02 PM PDT Researchers describe the first crab from the Cretaceous dinosaur era preserved in amber. The study used micro CT to examine and describe Cretapsara athanata, the oldest modern-looking crab (approximately 100 million years old) and the most complete fossil crab ever discovered. |
| Termite brains can grow in anticipation of a single moment of flight and light Posted: 20 Oct 2021 10:59 AM PDT In a dampwood termite colony only a select few will, quite literally, see the light. The insects are unique due to their mating flights and the adaptability of their role within the colony, which is based on the overall needs of the group. King and queen termites must leave the nest and are the only members to go outside -- briefly --to partner off and tunnel into a new location to start another colony. Researchers investigated how this group of individuals, who are destined to leave the nest, evolve differently in the brain region that processes vision. |
| Researchers make hardened wooden knives that slice through steak Posted: 20 Oct 2021 10:59 AM PDT The sharpest knives available are made of either steel or ceramic, both of which are human-made materials that must be forged in furnaces under extreme temperatures. Now, researchers have developed a potentially more sustainable way to make sharp knives: using hardened wood. The method makes wood 23 times harder and a knife made from the material is nearly three times sharper than a stainless-steel dinner table knife. |
| Study of DNA repair boosts prospects for gene editing technology Posted: 20 Oct 2021 10:59 AM PDT Researchers have developed a new method to profile the activity of cellular genes involved in correcting DNA damage, and applied this method to pave the way for dramatic improvements to genome editing technologies. |
| Origin of domestic horses finally established Posted: 20 Oct 2021 10:59 AM PDT The modern horse was domesticated around 2200 years BCE in the northern Caucasus. In the centuries that followed it spread throughout Asia and Europe. An international team of 162 scientists collected, sequenced and compared 273 genomes from ancient horses scattered across Eurasia to come up with this finding. |
| Humans did not cause woolly mammoths to go extinct -- climate change did Posted: 20 Oct 2021 10:59 AM PDT Humans did not cause woolly mammoths to go extinct -- climate change did. For five million years, woolly mammoths roamed the earth until they vanished for good nearly 4,000 years ago -- and scientists have finally proved why. The hairy cousins of today's elephants lived alongside early humans and were a regular staple of their diet -- their skeletons were used to build shelters, harpoons were carved from their giant tusks, artwork featuring them is daubed on cave walls, and 30,000 years ago, the oldest known musical instrument, a flute, was made out of a mammoth bone. |
| Urban wastes used as fertilizers contain higher PFAS than livestock manure Posted: 20 Oct 2021 05:38 AM PDT Because of their useful surfactant properties, per- and polyfluoroalkyl substances (PFAS) have been massively produced for non-stick coatings, water-repellant fabrics and firefighting foams. However, scientists have detected these highly stable 'forever chemicals' throughout the environment, prompting toxicity concerns. Now, researchers have characterized PFAS in contemporary and historical organic waste products applied to agricultural fields in France, finding the highest amounts in urban samples, with compounds changing over time. |
| Scientists develop sperm cells from primate stem cells Posted: 19 Oct 2021 07:32 PM PDT A new study shows that functional sperm cells can be made in a dish using primate embryonic stem cells. |
| Cat bacteria treats mouse skin infection, may help you and your pets as well Posted: 19 Oct 2021 09:35 AM PDT Researchers identify a strain of bacteria on healthy cats that produces antibiotics against severe skin infections. The findings may soon lead to new bacteriotherapies for humans and their pets, wherein cat bacteria is applied via topical cream or spray. |
| 'Ray guns' let scientists use light instead of DNA to tell plant populations apart Posted: 19 Oct 2021 09:35 AM PDT Using a handheld device that looks a little like a ray gun, scientists recorded how plant leaves on different Alaskan mountains reflect light. And, it turns out, different populations of plants of the same species -- for instance, plants living on neighboring mountaintops -- reflect light differently, in ways that echo their genetic variation from each other. |
| Viral infections could promote neurodegeneration Posted: 19 Oct 2021 09:01 AM PDT Some viral diseases could possibly contribute to neurodegeneration. Researchers found that certain viral molecules facilitated intercellular spreading of protein aggregates that are hallmarks of brain diseases like Alzheimer's. These findings may provide clues how acute or chronic viral infections could contribute to neurodegeneration. |
| You are subscribed to email updates from Plants & Animals News -- ScienceDaily. To stop receiving these emails, you may unsubscribe now. | Email delivery powered by Google |
| Google, 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States | |
Laden...
Laden...
