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ScienceDaily: Plants & Animals News |
| These fish work together by the hundreds of thousands to make waves Posted: 22 Dec 2021 12:31 PM PST In the sports arena, spectators sometimes create a spectacle known as a wave, as successive groups stand up in unison to yell with arms in the air. Now, researchers have shown that small freshwater fish known as sulphur mollies do a similar thing, and for life or death reasons. The collective wave action produced by hundreds of thousands of fish working together helps to protect them from predatory birds. |
| How do our organs know when to stop growing? Posted: 22 Dec 2021 12:30 PM PST The smallest fish in the world, the Paedocypris, measures only 7 millimeters. This is nothing compared to the 9 meters of the whale shark. The small fish shares many of the same genes and the same anatomy with the shark, but the dorsal and caudal fins, gills, stomach and heart, are thousands of times smaller! How do organs and tissues of this miniature fish stop growing very quickly, unlike those of their giant cousin? A multidisciplinary team was able to answer this fundamental question by studying its physics and using mathematical equations. |
| Team succeeds in culturing the pygmy zebra octopus Posted: 22 Dec 2021 07:49 AM PST Researchers report culturing methods for the pygmy zebra octopus, an emerging laboratory research organism. |
| For some Greenlanders, eating sugar is healthy Posted: 22 Dec 2021 07:08 AM PST A genetic variation among some Greenlanders makes sugar healthy -- significantly more than for most people. According to a new study, gut bacteria and a unique diet that has nourished Greenlanders for millennia have provided them with a genetic variation that offers an incredible advantage. |
| Wise old elephants keep the young calm Posted: 21 Dec 2021 06:24 PM PST Male elephants are more aggressive when fewer older males are present, new research suggests. |
| Promising new target for tuberculosis treatment Posted: 21 Dec 2021 10:31 AM PST Mycobacterium tuberculosis (Mtb), the hardy bacterial species that causes tuberculosis (TB), has an unexpected vulnerability that future drugs may be able to exploit, according to a new study. |
| Where does the special scent of thyme and oregano come from? Posted: 21 Dec 2021 07:27 AM PST Thyme and oregano are not only popular herbs for cooking, but also valuable medicinal plants. Their essential oils contain thymol and carvacrol which impart the typical flavors and are medically important. A team has now fully identified how the plants produce these two substances. The results could simplify the breeding process and improve the pharmaceutical value of thyme and oregano. |
| Trees are important for cleaner air in cities Posted: 21 Dec 2021 07:27 AM PST Air pollution levels vary greatly between different places in a city. This is the finding of a new study which concludes that trees contribute to cleaner air in cities. |
| The Hitchhiker’s guide to the soil Posted: 21 Dec 2021 07:27 AM PST The interaction of fungi and bacteria in the transport of viruses in the soil ecosystem has been examined in a recent study. The scientists showed a novel mechanism of viral transport by bacterial shuttles traveling along fungal hyphae. Bacteria thereby benefit from taking along viruses on the conquest of new habitats. |
| How transparency in butterflies and moths helps ward off predators Posted: 21 Dec 2021 07:27 AM PST Transparent wing patches may do more than allow butterflies and moths to hide -- they may also warn predators to leave them alone, suggests a new study. |
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