Why are bald eagles such great gliders? It's all in the wrist

Birds come in an astounding array of shapes and colors. New research helps explain why bird species with similar flight styles or body sizes don't have consistent wing shapes. Bird species tend to reshape the range of motion of their wings — rather than wing shape or size itself — as they evolve new ways of flying.

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Climate warming promises more frequent extreme El Niño events

New research, based on 33 historical El Niño events from 1901 to 2017, show climate change effects have shifted the El Niño onset location from the eastern Pacific to the western Pacific and caused more frequent extreme El Niño events since the 1970's. Continued warming over the western Pacific warm pool, driven by anthropogenic climate change, promises conditions that will trigger more extreme events in the future.

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3-D printed coral could help endangered reefs

Threats to coral reefs are everywhere — rising water temperatures, ocean acidification, coral bleaching, fishing and other human activities. But new research shows that 3-D printed coral can provide a structural starter kit for reef organisms and can become part of the landscape as fish and coral build their homes around the artificial coral.

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Last year's extreme snowfall wiped out breeding of Arctic animals and plants

In 2018, vast amounts of snow were spread across most of the Arctic region and did not melt fully until late summer, if at all. Researchers documented the consequences of this extreme weather event at Zackenberg, Northeast Greenland by extensively monitoring all components of the local ecosystem for more than 20 years, allowing them to compare life in the extreme year of 2018 to other, more 'normal,' years.

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Artificial intelligence and farmer knowledge boost smallholder maize yields

Farmers in Colombia's maize-growing region of Córdoba had seen it all: too much rain one year, a searing drought the next. Yields were down and their livelihoods hung in the balance. To better deal with climate stress, farmers in Colombia's maize-growing region of Córdoba needed information services that would help them decide what varieties to plant, when they should sow and how they should manage their crops.

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