Abirds egg is fragile but does not crack under the weight of the mother bird sitting on it. why?

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks

This patient undergoes a gallbladder sonogram due to epigastric pain. the report indicates that the visualized portions of the liver are normal. no free fluid noted within morisons pouch. the gallbladder is identified and is empty no evidence of wall thickening or surrounding fluid is seen there is no ductal dilation. the common hepatic duct and common bile duct measure 0.4 and 0.8 cm respectively. the common bile ductmeasurement is at the upper limits of normal what cpt code in icd-10 cm code was used

Isolated volcanic peaks on the ocean floor are