It's a joint project with the University of Ghana to collect data on nesting and population trends.

这是与加纳大学的合作项目，用以收集海龟筑巢数据和数量趋势。

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One demographer has said the 300 millionth person would likely be a Latino boy given current U.S. population trends.

美国一位人口统计学家曾说，从目前美国的人口走势来看，这第三亿个人可能会是一个拉丁裔男婴。

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At a time when Malthusian alarms are ringing because of environmental pressures, falling fertility may even provide a measure of reassurance about global population trends.

在当前因环境压力因素，马尔萨斯人口论向人们敲响警钟时，生育率的降低也不失为人们对全球人口走向担忧的一剂安抚剂。

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The fish count mobilizes and trains volunteer divers to identify and document fish diversity and population trends.

CNN: Counting fish adds up for marine protection

So for those countries with well-developed pension systems, there is a long-term problem from these population trends.

BBC: Ageing populations and fewer workers strain pensions

But if Democrats can replicate 2012 turnout rates in 2016, they would win the presidency, given current population trends, Frey said.

NPR: A Census First: Black Voter Turnout Passes Whites