Dinosaurs' Last Ancient Breaths May Finally Answer a Long-Standing Mystery

This slot question has long eluded paleontologists, leading to many heated debates where they even accused each other of acting more like politicians than scientists.

Early dinosaur researchers initially assumed these animals were slow, lumbering, and cold-blooded like the modern reptiles they seemed to resemble – their closest reptilian relatives that exist today being crocodilians.More recently, however, there have been hints that this is not the case.

From metabolic clues in eggshells to the warm-blooded trait of being able to withstand frigid polar conditions, there are growing signs that dinosaurs may have been warm-blooded animals.