Squirrel sperm and feet tell a different climate change story

Perhaps it's time to replace the canary in a coal mine metaphor with a squirrel in the ground. Because two University of Manitoba studies found that climate change is altering ground squirrels' sperm and feet, and this warns ...

New portable tool analyzes microbes in the environment

Imagine a device that could swiftly analyze microbes in oceans and other aquatic environments, revealing the health of these organisms—too tiny to be seen by the naked eye—and their response to threats to their ecosystems.

Using physics to improve root canal efficiency

Scientists used computational fluid dynamics to determine the effect of temperature on root canal cleaning efficiency. Higher temperatures can, to a point, improve cleansing, but this benefit falls off if the temperature ...

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