A bee’s sting won’t hurt an elephant’s tough hide, but bees can swarm and wound more sensitive places like the trunk, eyes and mouth.
The film “2001: A Space Odyssey,” which is being rereleased this year for its 50th anniversary, baffled film critics when it first came out but now tops their lists of the most important movies of all time.
A sauropod footprint found in Scotland was among several that included tracks left by smaller, two-legged meat-eaters. Their presence together upends a theory that the larger plant-eaters waded into shallow, muddy waters to evade predators.
Over the past 17 years, the numbers of some bird species in French farming regions have dropped considerably. Meadow pipits have declined by 68 percent.
Icebergs near Greenland's glaciers, which are speeding up as the climate warms.
Sandy was a lab chimp, now retired at Chimp Haven in Keithville, La. The N.I.H. is deciding whether old, ill chimps formerly used in research should be moved to sanctuaries like Chimp Haven, or retire in place.
Embryonic stem cells surrounded by feeder cells. When a team of scientists tried using Crispr to turn stem cells into neurons, they found that many of them died unless a cancer-fighting gene also was deactivated.
Eclipse-watchers on Nye Beach in Newport, Ore., on Aug. 21.
A whistling kite hovering over Queensland, Australia. Whistling kites are the so-called “firehawks,” said to spread bush fires to drive out prey.
A laser beam shot from one of four telescope units of the European Southern Observatory's Very Large Telescope, one of the largest in the world. New telescopes such as the Thirty Meter Telescope and the Extremely Large Telescope would dwarf it — if they're completed.
A 10,000-year-old dog from an archaeological site near Eldred, Ill., known as the Koster site, where the earliest known dogs in the Americas were found.
Sister Ofelia Morales Francisco, left, and Sister Rosa Cortez in the Convento Maria Inmaculada de La Salud in Mexico. The nuns make a cough syrup, in the bottle at right, from achoques, a type of salamander vanishing from nearby Lake Patzcuaro.
The International Space Station will stay in orbit for at least four years after 2020, NASA said.
Radar images of a near-Earth asteroid collected in 2015. Since 2011, a NASA project called Neowise has studied 158,000 asteroids. But Microsoft’s former chief technologist, Dr. Nathan P. Myhrvold, criticized those numbers. “The science is terrible,” he said.
A bee in Austria.
Across the country, biohackers — hobbyists, amateur geneticists, students and enthusiasts — are practicing gene editing, concerning some bioterrorism experts.
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