World's largest dinosaur eggs File photo shows dinosaur eggs on display at a natural science museum in China. Researchers have said th...

World's largest dinosaur eggs

File photo shows dinosaur eggs on display at a natural science museum in China. Researchers have said that egg size is constricted by upper limits to the thickness of shells, which have to allow oxygen through to the embryo. (AFP Photo/Str)

File photo shows dinosaur eggs on display at a natural science museum in China. The fact that land-bound dinosaurs laid eggs is what sealed their fate of mass extinction millions of years ago while live birthing mammals went on to thrive, scientists said Wednesday. (AFP Photo/Str)

A man looks at what is believed to be fossilised dinosaur eggs at a site in Russia's volatile Chechnya region April 14, 2012. (REUTERS/Yelena Fitkulina)

An undated handout picture released by Chechen State University shows the egg-shaped protrusions on a rock face in southern part of Chechnya. A university in Russia's Chechnya claimed today to have found an unprecedented stash of giant fossilised dinosaur eggs in a remote mountainous area of the North Caucasus region. (AFP Photo/)

A man looks at what is believed to be fossilised dinosaur eggs at a site in Russia's volatile Chechnya region April 14, 2012. (REUTERS/Yelena Fitkulina)

A university in Russia's Chechnya claimed on Apr. 17 to have found an unprecedented stash of giant fossilized dinosaur eggs in a remote mountainous area of the North Caucasus region.

(Agencies)