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Meeting of the waters
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A pink Amazon river dolphin on the warm side of the "Meeting of the Waters." This is where the sandy Amazon River meets the dark waters of the Rio Negro in Manaus, Brazil. A strong density gradient contributes to their visible separation, as well as a significant temperature difference - the Amazon flows at around 22°C, while the Rio Negro is around 28°C.
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6633 |
duddy |
10 years ago |
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How apes go fishing
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This is the first photograph taken of an orangutan using a tool to fish in Borneo. The photo captures a moment when this male was using the pole to catch fish trapped in the locals’ fishing lines.
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3128 |
duddy |
10 years ago |
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How long until it's gone?
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450 years for a plastic bottle, 50 for a Styrofoam cup, and 10 to 20 years for a plastic bag.
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4433 |
duddy |
9 years ago |
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Oldest freshwater lake on Earth
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Lake Baikal in eastern Siberia is the oldest freshwater lake on Earth, and one of the largest and deepest, containing around one-fifth of the world's freshwater. In winter, it freezes over, and these beautiful transparent, turquoise masses of broken ice appear momentarily in March, caused by the unequal structure, temperature and pressure in the main body of the packed ice.
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4359 |
duddy |
9 years ago |
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2390 |
duddy |
9 years ago |
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5844 |
duddy |
9 years ago |
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Spitting fish
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Why do these fish look like they’re spouting puffs of magic dust out of their mouths? The tiny crustaceans (1 millimetre-long crustacean called an ostracod) that these transparent fish try to eat light them up, causing the fish to be at risk of predation themselves, so they spit them out! ...
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3751 |
duddy |
9 years ago |
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We are the stars, we are the universe
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I'd like to share this mind-opening video. Astrophysicist Dr. Neil DeGrasse Tyson was asked by a reader of TIME magazine, "What is the most astounding fact you can share with us about the Universe?" This is his answer. By far, one of the best...
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4507 |
ehd123 |
9 years ago |
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How ocean creatures size up to humans
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Here are the most accurate measurements of the ocean's biggest animals. These are confirmed measurements, unlike many found on the internet that state outrageous numbers.
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17918 |
duddy |
9 years ago |
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This knife can cut a water droplet in half!
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It's called a superhydrophobic knife and it slices water droplets easier than a butter-knife cuts through butter. As its name suggests, anything that is 'superhydrophobic' is highly hydrophobic, i.e., extremely difficult to wet. This special knife uses polyethylene - a common plastic - zinc, and copper. Its surfaces was dipped into a solution of silver nitrate and a superhydrophobic solution called HDFT for 20 seconds, and once it was washed and air-dried, it was super-great at repelling water.
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10705 |
duddy |
9 years ago |
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8550 |
duddy |
9 years ago |
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This strange animal can drink through its feet
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The thorny dragon ( Moloch horridus) is an Australian lizard that grows up to 20 cm in length, and it can live for up to 20 years. Not only is it covered entirely with conical spines, it has the uncanny ability to suck in water from all over its body - including its feet - through capillary action.
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32050 |
duddy |
9 years ago |
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A lake above an ocean in the Faroe Islands
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The lake Leitisvatn/Sørvágsvatn sits about 30 metres above sea level. The Faroe Islands are an archipelago between the Norwegian Sea and the North Atlantic Ocean, approximately halfway between Norway and Iceland, 320 kilometres (200 mi) north-northwest of mainland Scotland. The area is approximately 1,400 km 2 with a 2010 population of 50,000. Here's another look. ...
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13864 |
duddy |
9 years ago |
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18153 |
duddy |
9 years ago |
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24637 |
ehd123 |
9 years ago |
