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Sagar Giri / WWF Nepal.  https://www.discoverwildlife.com/environment/otter-conservation-nepal Big news from Nepal's rivers: after 185 years without a single sighting, the world's smallest otter species — the Asian small-clawed otter — has been spotted again, found by forest officials near the confluence of the Rangun and Puntara Rivers. It's a heartwarming milestone for a three-year WWF conservation project along the Lower Karnali River, which is working to protect the region's otters (and the 200 local households whose livelihoods depend on the same waters). What makes this story extra special is the people behind it. Indigenous Sonaha and Tharu community members have become "otter champions," patrolling river stretches, learning eco-friendly fishing practices, and even taking on new identities — one woman is now proudly known locally as "Uduwa waali," or Otter Lady. It's a lovely reminder that when communities and conservationists team up, ev...

  https://unsplash.com/photos/blue-and-black-can-on-black-surface-vorH-CF_SZI Here's the good news in battery form: scientists at the University of Surrey are cooking up lithium-carbon dioxide batteries that don't just store energy — they gobble up CO₂ while doing it, turning it into a harmless white powder. They could theoretically pack way more punch per charge than today's lithium-ion batteries thanks to a bigger electron exchange during the reaction, and the team has found a promising new way to tackle the tricky recharging problem that's held the tech back. The dream applications are wonderfully wide-ranging: imagine cutting emissions from cars and factories, or even one day powering long missions on Mars, where the atmosphere is almost entirely CO₂. Researchers are now testing how it holds up under real-world conditions like car exhaust pressure — and if it works, a single kilogram of catalyst could soak up enough CO₂ to offset a car's daily emissions.  Early...

51% Attack In a PoW system, if a concentrated group or entity obtains control of 51% (or more) of a cryptocurrency network’s hash power, they would in theory be able to perform a 51% attack. A 51% attack could allow the group of entity to double spend, replace blocks on the blockchain, prevent other miners & mining pools from being able to earn mining rewards, among other malicious acts. Address An address is a unique string of letters and numbers that is used to receive cryptocurrency from another person. Address lengths vary. Bitcoin addresses are usually 26-35 characters (though most Bitcoin addresses are 34). Ethereum addresses are 40 characters (42 including 0x prefix). The private key is used to create the public key; the public key is used to create the address Airdrop An Airdrop is a method of distribution for a new Cryptocurrency or token. Airdrops help to increase a projects visibility and circulating supply, and to create early buzz. Altcoin Altcoins (alternative coins) ...