Molecular analysis of the eggshell structure of large flightless birds such as ostriches and emus provides new insights into how they evolved. Genetic analyses have recently allowed scientists to ...

Over their short lifetimes though, bird eggshells change their strength. For example, they get thinner and weaker before hatching begins. Now, researchers investigating eggshell structure have zeroed ...

The differences between the biogenic and abiogenic calcite in dinosaur eggshells: In the PLM images (A and E), biogenic calcite is dark, while abiogenic calcite is bright; On the IPF maps (B and F), ...