When the first warm-blooded dinosaurs roamed Earth

Scientists once thought of dinosaurs as sluggish, cold-blooded creatures. Then research suggested that some could control their body temperature, but when and how that shift came about remained a mystery.

How saber-toothed tigers acquired their long upper canine teeth

An international team led by scientists from the University of Liège has investigated the evolutionary patterns behind the development of saber teeth, with some unexpected results along the way. Their study has been published ...

Experiment reveals strategic thinking in mice

Are mice clever enough to be strategic? Kishore Kuchibhotla, a Johns Hopkins University neuroscientist who studies learning in humans and animals, and who has long worked with mice, wondered why rodents often performed poorly ...

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