Big birds with bitty brains are still kind of brightWe’ve learned a lot about the remarkable intelligence of birds like crows and parrots, but not much work has been done on large flightless birds. A new study that explored the problem-solving abilities of emus, ostriches and rheas suggests that some of these birdy behemoths have impressive cognition too. In a first-of-its-kind study, a team led by University of Bristol’s Fay Clark trained the birds to use puzzles to get food, and they found that the rheas and emus were able to solve the puzzle easily, though the ostriches did not. The research was published in the journal Scientific Reports.Cows jump over the moon — maybe humans should tooResearchers have done a lot of work to try and understand how astronauts can best prepare for and compensate for the muscle and bone atrophy that they will experience after long periods in zero G. A new study, led by Marco Chiaberge at Johns Hopkins University, suggests that a workout that includes jumping might be beneficial. The researchers found that by training mice to repeatedly jump up from one level to another increased their knee cartilage thickness by 26 per cent. The research was published in the journal npj Microgravity.Mary had a little lamb – 11,000 years agoSheep are among the animals that humans domesticated first, in the middle east during the dawn of agriculture. A new genetic study of hundreds of ancient sheep remains, which date across 12 millennia, is shedding light on the intertwined history of sheep and humans. The work, led by geneticist Dan Bradley of Trinity College Dublin, tells the story of how the sheep’s domestication not only gave us clothes but also milk and meat which fueled our spread around the world for thousands of years, and how humans molded sheep by selecting them for colour and wool. The research was published in the journal Science.A tiny great ape lived in Europe 12 million years agoThe tiniest member of the great ape family — the group that today includes the chimpanzees, orangutans, bonobos, gorillas, and us — has been identified from fossils found in Germany. Nearly 12 million years ago, the 10-kilogram animal would have shared its environment with another, larger great ape species, something researchers didn’t think was possible. David Begun, a paleoanthropologist at the University of Toronto, said its two fossilized teeth and a single knee bone indicated that Buronius manfredschmidi had its own ecological niche high up in the trees. The study was published in the journal PLOS One.&nbsp;The recipe for finding life on other planetsIn the last two decades we’ve discovered literally thousands of planets orbiting nearby stars. And our technology has advanced to the point where we’re on the cusp of being able to investigate whether there’s life on those planets. We speak to astrophysicist Lisa Kaltenegger, the founder of Cornell University’s Carl Sagan Institute, about her work trying to answer that question, and her book Alien Earths: Planet Hunting in the Cosmos.

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