Some Dinosaur Eggs Took Six Months or More to Hatch Using embryonic tooth age, researchers have concluded that dinosaur eggs took twice as long to hatch as bird eggs. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:A Very Hungry Caterpillar Eats Plastic Bags, Researchers SayOp-Ed Contributor: Sowing Climate Doubt Among SchoolteachersCassini images: The most STUNNING new images and video all the way from SaturnCassini makes contact with Earth: Spacecraft reports back from STUNNING Saturn rings studyHISTORIC SPACE ERA: NASA on the brink of the most 'profound' discovery ever… ALIEN LIFELIFE ON MARS: First humans to colonise Red Planet will live like THIS