Play behaviours of northern grasshopper mice, Onychomys leucogaster, were observed from 27 to 61 days of age and after a brief period of social isolation. The mice were also observed during a simple test of cricket predation. With the exception of an active play-soliciting response, the play ...
此图片遵循CC BY-SA 2.0协议 图片题注:An NIR C3K railcar参考译文:一辆北爱铁路C3K型铁路车辆图片作者:Aubrey Dale Northern Ireland has underdeveloped transport infrastructure, with most infrastructure concentrated around Greater Belfast, Greater Derry, and Craigavon. Northern Ireland is served by three airpor...
had a special role to play. Because their English language, acquired in local schools, was normally much more fluent that that of their parents, the children were the ones who brought the buckets of fruit to the trailer to have them weighed and receive their payment. All payment was in ...