As part of its ongoing efforts to integrate robotics into its gigantic warehouse operations, Amazon recently began experimenting with a bipedal robot called Digit that should be able the most repetitive tasks.

Amazon warehouse employees have long gotten used to working alongside robots, but staff at the company’s BFI1 experimental facility in Sumner are now getting familiarized with Digit, a new type of humanoid robot developed by Agility Robotics, a startup based in Corvallis, Oregon. Standing 5ft 9in (175cm) tall and weighing 143lb (65kg), Digit can walk forwards, backward, and sideways, and can also crouch if it needs to. Amazon’s new robot worker has two arms, two legs, a blue chest, and two square lights for eyes, and is currently tasked only with recycling the iconic yellow boxes once they have been emptied of inventory.

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Amazon contract delivery drivers in Chicago are allegedly hanging their smartphones outside warehouses and delivery points to boost their chances of getting delivery orders.

Major news outlet Bloomberg last week reported on a strange new trend among Amazon and Whole foods contract drivers in Chicago – hanging their smartphones in trees close to the companies’ warehouses and parking their cars nearby to get first dibs on accepting new delivery orders. Amazon’s system allegedly chooses drivers based on who is closest to the pickup location, so even the slightest advantage over the stiff competition among drivers can boost chances of getting access to the offers first. The phones in the trees have the Amazon Flex app installed and are synched with other phones belonging to other drivers, to make it harder for Amazon to detect offenders.

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When receiving an order from Amazon, most people throw way the packaging box immediately, but one Japanese man loves Amazon boxes so much that he has spent the last 9 years collecting them.

So what posses a man to start collecting Amazon cardboard boxes? In the case of Kosuke Saito, from Osaka, Japan, it was the discovery of a pattern of numbers. It all started one day, in 2008, when, while unpacking an Amazon product, he noticed the serial number “XM06” on the packaging and remembered seeing “XM08” on another Amazon box. That got him thinking that if there was an XM06 and an XM08, surely there must be an XM07 as well. He wanted to know what that box was like, but it was only the beginning, because he soon discovered that Amazon boxes come in all shapes and sizes, and he was curious about all of them.

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Deep in the western Amazon rainforest, live butterflies that drink turtle tears. That sounds like a line straight out of a fantasy novel, but it’s one hundred percent real life! It’s an unusual sight – swarms of butterflies flocking at the eyes of yellow-spotted river turtles, trying to get a sip. The poor turtles keep ducking or swatting, but the butterflies persist until they’ve had their fill.

According to Phil Torres, a scientist at the Tambopata Research Center in Peru, the butterflies are attracted to turtle tears because the drops of liquid contain sodium, a mineral that is scarce in the western Amazon region. While turtles get plenty of sodium through their carnivorous diet, the herbivore butterflies need an extra mineral source.

Torres explained that the western Amazon rainforest is over 1,000 miles away from the Atlantic Ocean – a prime source of salt. The region is also cut off from the mineral particles blown towards the west from the Andes Mountains. Most of these windblown minerals are removed from the air by the rain before they have a chance to reach the western Amazon. These factors contribute to the extremely low levels of sodium. So the butterflies have to turn to the best source available to them, and that include turtle tears, animal urine, muddy river banks, puddles, and sweaty clothes.

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Among the most bizarre coming-of-age rites we’ve ever featured is the one followed by the Satere-Mawe Tribe, an indigenous tribe from the Amazon rain forest, Brazil. What a boy has to do to become a man in this tribal community is painful, to say the least – he has to withstand being stung by not one, but a swarm of Bullet Ants. In case you’e not familiar with this exotic insect, here’s an interesting fact: the Bullet Ant claims the number one spot on the SSPI (Schmidt Sting Pain Index), a scale created by Justin Schmidt that rates the pain caused by different Hymenopteran stings. Some say the ant’s sting is just as agonizing as being shot by a bullet.

In preparation for the initiation rite, the elders of the tribe collect the ants from the jungle. These ants are drugged and placed stinger- first into special gloves woven from leaves. As the drug wears off, the ants become increasingly agitated and are raring to sting. This is when the boy puts on the gloves and lets the bullet ants work their magic, for 10 whole minutes, no less. “It’s the same as having your hands on fire,” says one Satere man. But the real pain starts once the gloves come off, and the venom starts to take effect. As the pain continues to rise, the hands become paralyzed and look like stumps. But just one attempt is usually not enough to turn a Stare boy into a man. He must go through this ritual as many times as it takes for him not to cry during the process. The day he doesn’t shed a single tear, is when he becomes a real man. Sometimes, this can take up to 20 attempts.

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