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Tragedy has produced opportunity among the acorn woodpeckers here in California's Carmel Valley. The second of two breeding females in this particular communal group has been killed, probably by the birds of prey that kill one in five of the acorn wo
发表于:2018-12-30 / 阅读(33) / 评论(0)
国家地理2007年
By Caty Weaver Broadcast: September 19, 2003 This is Bob Doughty with the VOA Special English Environment Report. Scientists have identified the elephants that live on the island of Borneo in Malaysia
发表于:2019-01-30 / 阅读(120) / 评论(0)
VOA2003(下)-环境与健康