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AnimalsStreaked shearwaters poop only while flying over the ocean
In-flight defecation may help the birds stay away from feces that can contain pathogens such as bird flu while also fertilizing the ocean.
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SpaceAstronauts need oxygen. Magnets could help
Adding a magnet could simplify the process of producing oxygen in space, making a crewed mission to Mars more feasible.
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ArchaeologyAncient hominids made long road trips to collect stone for tools
A Kenyan site shows early hominids transported stone 13 kilometers for toolmaking as early as 2.6 million years ago.
By Bruce Bower -