Marine fossils unearth story about Panama's deep past

Between 6.4 and 5.8 million years ago, most of the land bridge that connects North and South America had already emerged and the channels connecting both Pacific and Atlantic oceans were shallow. Recent fossil discoveries ...

In search of rice to reduce methane emissions

Livestock, the petroleum industry and landfills are all leading producers of methane, a potent greenhouse gas. But another significant but less well known contributor is one of the world's most popular crops: rice. Rice plants ...

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