UK Zoo Helps Hatch Three of World's Rarest Birds–Blue-Eyed Doves–with Only 11 Left in Wild

Columbina cyanopis, or the blue-eyed dove, in the Rolinha do Planalto Natural Reserve – credit, Hector Bottai CC BY-SA 4.0.A UK zoo is celebrating after helping to hatch three of the world’s rarest birds in what could be a breakthrough moment in saving the critically-endangered species from extinction.The trio of blue-eyed ground dove chicks were successfully hand-reared in Brazil, boosting the survival odds of one of the most endangered birds on the planet, only 11 of which are thought to remain in the wild.An international team, including British experts from the Chester Zoo, managed to rear the birds in the Brazilian state of Minas Gerais, the only place they are found.The team, also featuring Brazilian and American conservationists, say their arrival could provide a vital lifeline for the ultra-rare species by boosting their insurance population.The blue-eyed ground dove was a species shrouded in mystery, with no confirmed records for more than 70 years, until its rediscovery in 2015.“It’s a real privilege for Chester Zoo to be involved in the work to help conserve the blue-eyed ground dove,” said Andrew Owen, Chester Zoo’s head of birds.“This unique species is on the brink of extinction and without the dedication and passion of all the conservationists involved, including Chester Zoo’s bird staff, this bird may be lost forever.”“This...
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World's First Diamond Battery Could Power Spacecraft and Pacemakers for Thousands of Years

GNN-created imageAn invention from the UK features diamonds in the first-ever application of the gemstone in battery technology.Promising to last thousands of years, the microwatt power sources are seen as the perfect solution to devices in environments where neither changing batteries nor carrying around extras are options.Developed by the University of Bristol in partnership with the UK Atomic Energy Authority (UKAEA), the battery contains a radioactive isotope of carbon called carbon-14.Isotopes are forms of chemical elements with the same number of protons but a different number of neutrons. Some are stable, but those that aren’t are radioactive and emit radiation as they decay.In the battery, a radioactive carbon-14 isotope is encased inside a shell of diamond, the hardest substance known to man.“Diamond batteries offer a safe, sustainable way to provide continuous microwatt levels of power. They are an emerging technology that use a manufactured diamond to safely encase small amounts of carbon-14,” said Sarah Clark, the director of Tritium Fuel Cycle at the (UKAEA), in a statement.Electricity via the battery is generated in a way similar to a solar panel through the betavoltaic effect—harnessing the electrons emitted by the carbon-14 and captured by the diamond matrix.Carbon-14 has a half-life of about 5,700 years, meaning...
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