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.

CRISPR, gravity waves, water on Mars: A decade of discoveries

From finding the building blocks for life on Mars to breakthroughs in gene editing and the rise of artificial intelligence, here are six major scientific discoveries that shaped the 2010s—and what leading experts say could ...

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