Animals
Animals can feel joy. Here’s how scientists might study it
Research has long focused on understanding negative emotions like fear in animals. Now they’re trying to measure positive feelings like joy. It’s a challenge.
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Computing
Scientists Say: Boolean
Computers handle complex problems through a series of very simple answers, such yes or no, on or off — and most often, one or zero.
Analyze This!
Animals
Analyze This: How many insects are in the air?
Weather data have helped estimate the density of flying insects in U.S. skies. That could help track climate change’s impact on insects.
Technically Fiction
Space
Do multiple universes exist?
Some branches of physics hint that our universe is just one of many in a vast “multiverse.”
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This tool-using cow stunned scientists with her smarts
Veronika the cow scratches hard-to-reach body parts using a brush. This feat is forcing scientists to rethink which animals can use tools.
