Cook pines (Araucaria columnar) can be found around the world, but the tall, slim trees don't always grow straight up. instead leaning to one side. Why they do this is still a mystery to scientists, but thanks to a new study we now know that they lean in the direction of the equator. By taking measurements from 256 trees growing across 18 regions on five continents, researchers, for the first time, have observed that leaning patterns appear to be hemisphere-dependent. The found that, on average, pines tilt at 8.55 degrees, leaning south in the northern hemisphere, and the opposite direction in the southern hemisphere, with over 90% of the trees studied following this pattern. To find out more go to Worldwide hemisphere-dependent lean in Cook pines.
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Hi. I'm Carl A. Williams, a science, technology & industry writer living in San Francisco. I have published articles on a broad ranges of topics, from climate change and nanotechnology to quantum computing and artificial intelligence, a selection of which are presented here.
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