The common fruit fly circling your week-old peach has helped scientists zero in on a protein critical to the insect's eggshell formation. The paradoxical finding gives scientists a better ...

The calcitic layers of the eggshells of archosaurs (including crocodilians and birds) and turtles are composed of distinctive crystalline structures known as eggshell units. Those growing from the ...

Features of Undulatoolithus fragment NCSM 33729. A) surface view of NCSM 33729. Red line indicates where thin section was made (dashed where not seen in the radial thin sections). B) NCSM 33729 in ...