Tracking project establishes northern Argentina is wintering ground of Swainson's hawks
- Watch these six dots move across the map and be moved yourself: this is a story about coming of age, discovery, hardship, death and survival.
- Each dot is a tag attached to the talon of a Swainson's Hawk. We follow them on their very first migration, from northern California all the way down to Argentina.
- After one year, only one is still alive.
Less than a mile long, the Dorfbahn in Serfaus is also the world's highest metro system.
North Korea's Great Leader would rather not fly for his second summit with Trump – but the trip is also a political message to China.
- Kim Jong-un is already traveling for his summit with Trump on Wednesday.
- Rather than flying, he's taking a 60-hour train trip through China.
- The trip is a closely guarded secret, but this map shows the most likely itinerary.
Butter supply and life satisfaction are linked — but by causation or correlation?
- Haiti and other countries with low butter supply report low life satisfaction.
- The reverse is true for countries such as Germany, which score high in both categories.
- As the graph below shows, a curious pattern emerges across the globe. But is it causation or correlation?
The same 32 symbols show up in prehistoric European cave art.
- Many of these symbols are found in caves in Africa, Asia, Australia and America as well.
- At least 40,000 years old, the set of symbols may have been a universal communications tool.
- Among these symbols is the iconic hashtag.
First contact movies had their Golden Age in 1980s America – now they're going global.
- The first extra-terrestrial to make contact (in a movie) appeared in 1920s Germany.
- ET set off a wave of 'first contact' movies in the 1980s.
- Many recent alien-landing movies are set in China and India – the future of the genre may well be Asian.
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