Illustrations by R. Kikuo Johnson
Lee Se-dol, a professional Go player from South Korea, was smiling amid other players despite losing four of five games against a Google computer program called AlphaGo.
Cnidarians, including corals and many jellyfish, feed and defend themselves with stinging capsules. Some sea slugs have evolved several lines of defense.
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.
A lunar eclipse, visible in Sumatra, Indonesia on Saturday, could be seen alongside Mars, which is the closest it's been to Earth in 15 years.
Fully programmable robots were on display at the Humanoids 2013 conference in Atlanta. The goal is to enable them to work effectively and even autonomously in emergency situations.
In Acciaroli, a hamlet in southern Italy, about one-in-60 residents are over the age of 90. A survey of about 4,000 Italians found that mortality rates in old age plateau around 105, suggesting that the ceiling for human lifespan has not yet been reached.
Russians sorting raw hemp fibers in the Kursk region in the 1960s. Hemp has been used as building material for millennia in Europe and elsewhere, but it’s only just starting to get wider recognition as a green construction option.
Marco Zozaya in March near his home in Mexico. He aspires to be a science communicator like Neil deGrasse Tyson, but faces the conundrum of internet audiences and algorithms that may prefer drama over scientific information.
From left, Daniel Riley, Etosha Cave, Ilan Gur and Steven Kaye of the Cyclotron Road program at the Lawrence Berkeley National Laboratory, which has enrolled scientists who are starting energy-related research.
Fossils of extinct squidlike creatures called ammonites located in a rock layer very close to the boundary between the Permian and Triassic periods.
A whistling kite hovering over Queensland, Australia. Whistling kites are the so-called “firehawks,” said to spread bush fires to drive out prey.
Zhong Zhong, one of two cloned monkeys at the Chinese Academy of Sciences in Shanghai. They are the first primates cloned by transferring DNA into fetal cells.
Stone pendants and earrings recovered from the Lothagam North Pillar Site in Kenya, which is about 5,300 years old. It was used as a burial site for about 700 years. Then, abruptly and mysteriously, the burials stopped.
Signs of a henge, a man-made enclosure from thousands of years ago thought to serve as a gathering place, were photographed by a camera-enabled drone on Monday.
Sudan, the last male northern white rhino, who died in March.
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