Japanese researchers have discovered a molecular signature in blood that can tell time according to a person's internal body clock.

InkFish blogger Elizabeth Preston notes the discovery, which was published in PNAS this week by a team from the Riken Center for Developmental Biology in Kobe, Japan.

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In a statement, National Institutes of Health Director Francis Collins says sexual harassment is "morally indefensible" and "unacceptable."

Octopuses might owe their intelligence to their liberal alterations to their genes, Cosmos reports.

Stat News and ProPublica report that African Americans are underrepresented in cancer clinical trials.

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