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Mysterious rocks - help solve this puzzle
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Dozens of stones up to 300 kg in weight are traveling for hundreds of metres across a dried lake in America. But no one's ever seen them do it. So, what's making these Death Valley 'sailing stones' move?
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1027 |
duddy |
9 years ago |
182 Year-old land creature
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With an estimated birth year of 1832, Jonathan was alive for the invention of the safety pin, the telephone, and the roller coaster. Here, he is photographed in 1902 and today, on the South Pacific Island of Saint Helena.
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1079 |
duddy |
9 years ago |
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1108 |
duddy |
9 years ago |
Can you guess what animal this is?
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This is an x-ray of a developing bat embryo. A substance called Alcian blue staining is used to get a better view of its cartilage and bones.
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1067 |
duddy |
9 years ago |
The moon isn't round
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Although it may look perfectly round from Earth, the Moon isn’t a sphere. New research suggests that because of the way it was formed it’s more like a lemon, with a bulge in the middle.
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1112 |
duddy |
9 years ago |
Every year, this park becomes a lake
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I know we've shown this one before, but every spring when the snow melts, Green Lake in Tragöss, Austria overflows and floods the park next to it. For a few weeks, its trees, hiking trails, benches and bridges are submerged in over nine metres of water.
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1339 |
duddy |
9 years ago |
This proves that mothers are awesome
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It's official: a deep-sea octopus has broken the world record for time spent defending her eggs. After 4.5 years, they've finally hatched, so someone pass Octomum eight glasses of wine - she's earned them!
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1205 |
duddy |
9 years ago |
Energy efficiency chart
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A new report has ranked the world’s 16 major economies according to their energy efficiency, and Germany - who set a world record in May for generating 74% of their power needs from renewable energy - came out on top.
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1290 |
duddy |
9 years ago |
One of the most caring professions
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Doctors bow in reverence to cancer victim, Liang Yaoyi, in China. Nine-year-old Liang died from a brain tumour and donated his organs because, "There are many people doing great things in the world. I want to be a great kid too." What an incredible person.
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1161 |
duddy |
9 years ago |
This is why geckos can walk on walks
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Geckos have 500,000 keratinous hairs on their feet, which split at the ends to create a large surface area. The hairs allow geckos to scale smooth vertical surfaces.
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1247 |
duddy |
9 years ago |
Hottest and weirdest place on Earth
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Dallol in Ethiopia is not only the hottest inhabited place on Earth, it's also one of the weirdest. Between 1960 and 1966, the average annual temperature was a toasty 35°C (96°F), but the temperature can regularly creep to over 46°C (115°f). At 48 metres below sea level, Dallol is Earth's lowest land volcano, and its last recorded eruption was in 1926. Its craters contains hot springs that boast a whole range of otherworldly colours - including neon yellow - thanks to the hot magma bubbling below the surface. This magma heats the groundwater that flows into the area from the nearby highlands, and as the heated groundwater moves up towards the surface, it dissolves salt, sulphur, potash and other minerals and deposits them in the Dallol crat ...
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1287 |
duddy |
9 years ago |
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2873 |
duddy |
9 years ago |
Monstrous leaves
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Native to the Amazon Basin, the leaves of Victoria lilies can grow up to 3 metres in diameter and they have enormous 8-metre-long stalks.
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5594 |
duddy |
9 years ago |
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5841 |
duddy |
9 years ago |
World's largest aquatic insect
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The largest aquatic insect in the world has been discovered in China, with a wingspan of 21 cm. And those enormous tusks? They're for mating.
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7524 |
duddy |
9 years ago |