Featuring groundbreaking new science, experiments and leading scientists from a variety of disciplines, the series unravels the natural history of the body's largest organ.

DavidAttenboroughfollowstheremarkablestoryofthediscoveryoffossilsinthePatagoniaregionofArgentinawhichprovetobelongtothelargestanimaltoeverwalktheEarth.

　　骨骼是动物的架构和支撑，并在此之上产生力量, 但骨骼绝对不仅於此,6万多种脊椎动物，骨骼和骨架的些许变化造成物种之间的区别。进化生物学家和骨架构造大师班加罗德讲述神奇的骨骼。