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The Cambrian Explosion: Evolution’s Big Bang

The origins of insects, spiders, scorpions, crustaceans, and their relatives date to more than 500 million years ago, a period termed the Cambrian Explosion, when most of the modern groups of arthropods first occurred. A new study shows that rates of arthropod evolution during this period were 4 to 5 times faster than they are today.

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Light and Truth: Using Light to Elucidate the Language of the Brain

The brain is one of the least well understood of the organs in our bodies, and historically we have only had indirect methods available to measure neural activity. However, professors at the Yale School of Medicine have recently designed a new neural probe which directly measures and images brain activity using light.

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