To better understand how different seed-traits affect scatter-hoarding behavior, researchers from Xishuangbanna Tropical Botanical Garden carefully analyzed the decision making process of a common genus of Old World rodents (i.e. Apodemus) in Shangri-La Alpine Botanical Garden (27°54′N, 99°38′E, altitude 3456 m a.s.l.). They hypothesized that 1) the decision making process of scatter-hoarding rodents included four distinct steps; 2) Different seed-traits affect the rodents’ decision making process at each step differently. 3) Each single seed-trait does not have a unified or consistent effect on seed fate at all steps during the foraging process.
"Comparison studies indicate that the blade technology was probably introduced from the Altai region of Russian Siberia, and the flake technology is typical of the Late Paleolithic in north China. So, who created the incisions, the migrants from the west or the aborigines in north China? At this time, we cannot provide a clear scenario. More archaeological and anthropological evidences are needed to solve the puzzle”, said Dr. PENG Fei, first author of the study at the IVPP.
Researchers at Shanghai Institutes for Biological Sciences identified astrocytic dopamine D2 receptor (Drd2) as an important component of the neural network controlling innate immunity in the brain. They showed that astrocytic Drd2 tightly controls the expression of anti-inflammatory protein aB-crystallin (Cryab), which accounts for the observed modulation of immune balance.
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