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Learning from Past Extinctions

In this talk, biologist Anthony Barnosky discusses Earth’s five mass extinctions and whether current species declines may be part of a sixth mass extinction.

Sizing up the Brain Gene by Gene

In this talk, biomedical scientist Christopher Walsh discusses how DNA sequencing technology has led to a better understanding of the genes involved in brain development.

Decoding the Autism Puzzle

In this talk, biomedical scientist Christopher Walsh discusses how DNA sequencing techniques have led to a better understanding of the genetic basis of autism.