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ScienceDaily: Plants & Animals News |
Shift in West African wildmeat trade suggests erosion of cultural taboos Posted: 18 Sep 2020 05:37 AM PDT New research has demonstrated a clear fluctuation in the trade of wildmeat in and around the High Niger National Park in Guinea, West Africa. |
Humans develop more slowly than mice because our chemistry is different Posted: 17 Sep 2020 03:12 PM PDT Scientists have found that the 'segmentation clock' -- a genetic network that governs the body pattern formation of embryos -- progresses more slowly in humans than in mice because the biochemical reactions are slower in human cells. The differences in the speeds of biochemical reactions may underlie differences between species in the tempo of development. |
Invasive shrimp-sucking parasite continues northward Pacific expansion Posted: 17 Sep 2020 03:04 PM PDT Researchers have identified an invasive blood-sucking parasite on mud shrimp in the waters of British Columbia's Calvert Island. The discovery represents the northern-most record of the parasite on the West Coast and is likely an indication of its ability to spread without human transport. |
Chaotic 'Lévy walks' are a good strategy for animals Posted: 17 Sep 2020 07:53 AM PDT A new article explains the advantage that animals have of using a specific type of chaotic type of movement called a 'Lévy walk,' and how this type of behavior emerges. Using computer modeling, the author shows that this type of movement can allow animals to make flexible decisions between 'exploitation' and 'exploring' in an environment. |
Researchers discover how worms pass down knowledge through the generations Posted: 17 Sep 2020 05:45 AM PDT Researchers have discovered that the microscopic roundworm Caenorhabditis elegans recognizes a small RNA made by a pathogenic bacterium, and uses that RNA to convey learned avoidance of the bacterium to offspring. |
Scientists explaining how diverse species coexist in microbial communities Posted: 16 Sep 2020 12:48 PM PDT Researchers use mathematical modeling to explore how species diversity in a bacterial community is affected when the nutrients the microbes depend upon are only seasonally available. |
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