What are the risks when hens lay their eggs on the floor?

Hens usually prefer to lay their eggs in nests but it is not unusual for some eggs to be laid on the floor of the hen house or on the ground and in some cases the incidence of floor eggs can be quite high. A new study aims ...

Researchers seek longer battery life for electric locomotive

(Phys.org)—Norfolk Southern Railway No. 999 is the first all-electric, battery-powered locomotive in the United States. But when one of the thousand lead-acid batteries that power it dies, the locomotive shuts down. To ...

Overfishing and modern-day slavery

You're about to make a sandwich with canned albacore tuna today, and thinking that it's all a good thing—nutritionists talk about the health benefits of eating more seafood, after all. One thing you probably didn't think ...

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