Being copycats might be key to being human

Chimpanzees, human beings' closest animal relatives, share up to 98% of our genes. Their human-like hands and facial expressions can send uncanny shivers of self-recognition down the backs of zoo patrons.

Protect 30% of planet by 2030: UN Nature rescue plan

Thirty percent of Earth's surface across land and sea should become protected areas by 2030 to ensure the viability of ecosystems essential to human wellbeing, according to a UN plan released Monday.

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