Bird immune systems reveal harshness of city life

They may peck greedily at feeding tables—and have it easier than country birds do in the warmer urban winters—but city birds, it turns out, are in turmoil on the inside.

Neuropeptide controls roundworms' backward movement

A study of genetically diverse worms finds that the length of their backward movement is under the control of a small protein called a neuropeptide that fluctuates in response to food availability. The research, published ...

Gauging the effects of water scarcity on an irrigated planet

Growing global food demand, climate change, and climate policies favoring bioenergy production are expected to increase pressures on water resources around the world. Many analysts predict that water shortages will constrain ...

Maize fields entice geese to winter in Denmark

Increasing numbers of geese remain in Denmark for the winter. They forage in the growing number of maize fields all over the country. Researchers warn that in the long term, these geese may cause problems for agriculture.

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