Chicken first? Egg first? This her answers!

From now on you do not have confusion. Classic puzzle between first egg or chicken may be answered with the first discovery of fossil dinosaur nests in Canada. In nests made 77 million years ago was still clearly visible marks collection of five eggs.
 

"Characteristics of the nest is similar to a bird's nest," said Francois Therrein, one paleontologist from the Royal Tyrell Museum, Alberta, Canada. This means that the first dinosaurs to make a nest as a place to lay their eggs before the birds do. So far, some experts still assume that the evolution of birds evolved from dinosaurs.
The size of the nest about two feet in diameter and estimated to weigh 50 kilograms. In it there are at least 12 former eggshell each measuring 12 centimeters long and well-organized and led to a point.
"Based on the shape of eggs and nests, we believe that artificial nests or caenagnathid a small raptor, they are both meat eaters and have a close kinship with the birds," said Darla Zelenetsky, another researcher from the University of Calgary, Canada.
Studied since Zelenetsky stored at Fossil Canada Limited Calgary in the 1990s. Previously he thought the fossil nests are made of a beaked herbivorous dinosaur duck. However, after studying more carefully, it is known that the most likely lair of a group of theropods which were the ancestors of birds.