First Yawn

Newly born BRBs typically stretch their jaws like this soon after they break out of the membranes. The two babies to the left of this one are one that has broken it's head free from the membrane and another one born with lots of yolk material. When they are born with this much yolk material I like to see them break their heads free from the membrane and then stay attached to the umbilical for as long as possible to absorb the yolk material.