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As lead author Martin Banks and his team wrote: “We found a striking correlation between pupil shape and ecological niche”.

Top row, from left: cuttlefish, lion, goat. Domestic cats, crocodiles, and geckos are examples of such animals. Their eyes have lenses with varying optical power, and the authors are exploring if this characteristic is linked to elongated pupils. But this is the first study to...

In a break from tradition, Nepalese temple authorities on Tuesday announced an indefinite ban on a centuries-old Hindu tradition of mass animal slaughter that attracts hundreds of thousands of worshippers. The festival, which dates back about 265 years and which some say has even...