In a park in Paris city centre, pigeons were fed by two researchers, of similar build and skin color, wearing different colored lab coats.
在巴黎市中心的一个公园里，两名体型和肤色都相似的研究人员穿着不同颜色的实验室工作服去喂一群鸽子。
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Marathon, US: a dolphin at the dolphin Research Centre waits to be fed fish while swimming in a pen, as he acclimates to his new surroundings after being found.
美国，马拉松：一个海豚研究中心的海豚在池子里游泳的时候等待喂食，他已经适应了这儿的新环境。
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The runner-up in the election was Harmony Centre, a centre-left party backed by most of the country’s ethnic Russians, and also by ethnic Latvians fed up with the established parties.