Warm-blooded animals, such as birds — proven ... cold-blooded animals, like reptiles, rely on environmental heat sources like ...

Many dinosaurs were likely warm-blooded with high metabolic rates that resembled those ... Dinosaurs are popularly thought of as cold-blooded animals similar to many extant reptiles, although some ...

Three flying reptiles from Earth's distant past glide ... If so, this detail provides evidence of a high-revving, warm-blooded physiology that could sustain the kind of exertion needed to stay ...

Yet, if that's true, why aren't birds cold-blooded like most modern-day reptiles? The answer is straightforward: Most dinosaurs were probably warm-blooded, too. Birds are descended from a diverse ...

Jingmai O'Connor is the associate curator of fossil reptiles at the Field Museum ... have hotly debated whether dinosaurs were cold- or warm-blooded. It's been commonly suggested that warm ...

Green iguanas are cold-blooded, as they can't regulate their internal body temperature and they rely on the outside temperature to stay warm ...

As reptiles are cold-blooded they need to bask in the sun to warm themselves up and be ready for action. And if you think reptiles look a bit like dinosaurs that’s because dinosaurs were reptiles!

Once it becomes warm and the ice melts ... Footage taken by an NBC affiliate station showed a handful of the cold-blooded reptiles at the Shallotte River Swamp Park in Ocean Isle Beach breathing ...