Monisha Ravisetti was a science writer at CNET. She covered climate change, space rockets, mathematical puzzles, dinosaur bones, black holes, supernovas, and sometimes, the drama of philosophical ...

Giant flightless birds called mihirungs were the biggest birds to ever stride across what is now Australia. The animals, which weighed up to hundreds of kilograms, died out about 40,000 years ago. Now ...

When they are demons to slay, only one man can stand in their way. Or in this case, it seems like a duck is the better option. After all, anime fans know there’s one duck out there capable of pulling ...

To the right an emu-egg and to the left the egg, that the researchers believe originates from the Demon Duck of Doom, Genyornis newtoni. The latter egg weighs about 1.5 kilograms which is more than 20 ...