The tail of a beautiful, feathered dinosaur has been found perfectly preserved in amber from Myanmar. It is a huge breakthrough that could help open a new window on the biology of a group that dominated Earth for more than 160 million years. From a report on the National Geographic: The semitranslucent mid-Cretaceous amber sample, roughly the size and shape of a dried apricot, captures one of the earliest moments of differentiation between the feathers of birds of flight and the feathers of dinosaurs. Inside the lump of resin is a 1.4-inch appendage covered in delicate feathers, described as chestnut brown with a pale or white underside. CT scans and microscopic analysis of the sample revealed eight vertebrae from the middle or end of a long, thin tail that may have been originally made up of more than 25 vertebrae. NPR has a story on how this amber was found. An excerpt from it reads: In 2015, Lida Xing was visiting a market in northern Myanmar when a salesman brought out a piece of amber about the size of a pink rubber eraser. Inside, he could see a couple of ancient ants and a fuzzy brown tuft that the salesman said was a plant. As soon as Xing saw it, he knew it wasn’t a plant. It was the delicate, feathered tail of a tiny dinosaur. Read more of this story at Slashdot.
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First Dinosaur Tail Found Preserved in Amber
Dave Knott writes: A Canadian farmer has “helped lead to a researcher’s discovery of an unlikely weapon in the battle against global warming: a seaweed that nearly eliminates the destructive methane content of cow burps and farts, ” reports the CBC. “Joe Dorgan began feeding his cattle seaweed from nearby beaches more than a decade ago as a way to cut costs… Then researcher Rob Kinley of Dalhousie University caught wind of it.” He tested Dorgan’s seaweed mix, discovering that it reduced the methane in the cows’ burps and farts by about 20 per cent. “Kinley knew he was on to something, so he did further testing with 30 to 40 other seaweeds. That led him to a red seaweed Asparagopsis taxiformis he says reduces methane in cows burps and farts to almost nothing.” “Ruminant animals are responsible for roughly 20% of greenhouse gas emissions globally, so it’s not a small number, ” said Kinley, an agricultural research scientist now working at the Commonwealth Scientific and Industrial Research Organisation in Queensland, Australia. “We’re talking numbers equivalent to hundreds of millions of cars.” The researcher predicts a seaweed-based cow feed could be on the market within three to five years, according to the article. “He says the biggest challenge will be growing enough seaweed.” Read more of this story at Slashdot. 
sciencehabit quotes a report from Science Magazine: A decade ago, a fossil hunter was combing the beach in southeastern England when he found a strange, brown pebble. The surface of it caught his eye: It was smooth and strangely undulating, and also slightly crinkly in some places. That oddly textured pebble, scientists report today, is actually an endocast — an impression preserved in the rock — that represents the first known evidence of fossilized brain tissue of a dinosaur (likely a close relative of Iguanodon, a large, herbivorous type of dinosaur that lived about 133 million years ago). Human brains and bird brains are packed tightly into the brain case, so that their convolutions leave an impression of the inside of the case. But dinosaur (and reptile) brains are more loosely fitted; they are surrounded within the brain case by membranes called meninges, tough sheaths that protect and support the brain. So an endocast of a dinosaur brain might be expected to show those structures — and it did. But beneath them, remineralized in calcium phosphate, the researchers also spied a pattern of tiny capillaries and other cortical tissues — the sort of fabric you’d expect for the cortex of a brain. That those textures were pressed up against the brain case doesn’t necessarily mean that dinosaurs were bigger-brained and smarter than we thought, however: Instead, the dinosaur had likely simply toppled over and been preserved upside down, its brain tissue preserved by surrounding acidic, low-oxygen waters that pickled and hardened the membranes and tissues, providing a template for mineralization. The structure of the brain, studied with scanning electron microscopes, reveal similarities to both birds and crocodiles. The researchers reported their findings in a Special Publication of the Geological Society of London. Read more of this story at Slashdot.