SCDIRB copy 39088019634583 not included in the Bibliotheca Beckwithiana (unpublished). SCDIRB copy has bookplate: Smithsonian Libraries: The Beckwith-Browning-Peterson Teratology Collection. SCDIRB ...

How does our intestine, which can be at least 15 feet long, fit properly inside our bodies? As our digestive system grows, the gut tube goes through a series of dramatic looping and rotation to ...

A “propulsion anomaly” has put the trajectory of a lunar module, carrying scientific equipment from NASA and human remains, to successfully landing on the moon in jeopardy, planetary mission company ...