Feb 12 (Reuters) - Scientists have unearthed in southeastern China the fossil of a quail-sized bird that lived about 150 million years ago during the Jurassic Period and possessed surprisingly modern ...

koalas and northern hairy-nosed wombats Sara Hashemi The fossil suggests that modern birds evolved before the dinosaur-killing asteroid, perhaps in Antarctica Margherita Bassi A German submarine ...

Q: The amount of effort that goes into a Christmas Bird Count varies quite a bit across years and count circles. How do you deal with this issue when you calculate abundance trends? How do you know ...

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