Bacteria change behavior to tackle tiny obstacle course

It's not exactly the set of TV's "American Ninja Warrior," but a tiny obstacle course for bacteria has shown researchers how E. coli changes its behavior to rapidly clear obstructions to food. Their work holds implications ...

How egg cells choose their best powerhouses to pass on

Developing egg cells conduct tests to select the healthiest of their energy-making machines to be passed to the next generation. A new study in fruit flies, published online May 15 in Nature, shows how the testing is done.

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