Bark beetles in lodgepole pine used to be more selective, leaving the younger and healthier trees alone.
海滩松上的树皮甲虫会有选择性地寄居在松树上，避开年轻健康的松树。
Or it could be caused by the higher temperatures that now prevail in northern areas, allowing beetles to breed more often in summer and survive in greater Numbers through the winter.
或者，可能是因目前北部普遍存在的高温，使甲虫常常在夏天繁殖和在冬季幸存的数量都更多了。
Meanwhile, pests such as tree-killing beetles and crop-killing fungi will both increase their range and breed more rapidly.
同时，专杀树林的甲壳虫和专杀作物的真菌都会扩大活动范围，也会更加迅速繁殖。
A tarantula will sometimes kill a small animal like a snake, frog, or bird, but crickets, beetles, and other insects are more typical prey.
狼蛛有时候会猎杀一些小型动物，譬如蛇、青蛙或者小鸟，但通常列在它食谱上面的则是蟋蟀、甲虫或者其它的一些昆虫。
A tarantula will sometimes kill a small animal like a snake, frog, or bird, but crickets, beetles, and other insects are more typical prey.
狼蛛有时候会猎杀一些小型动物，譬如蛇、青蛙或者小鸟，但通常列在它食谱上面的则是蟋蟀、甲虫或者其它的一些昆虫。
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