One of the traits which allowed dinosaurs to dominate the fauna of the jurassic and cretaceous periods was that they grew rapidly .
恐龙得以称霸整个侏罗纪和白垩纪时期的特征之一就是它们的生长速度非常快。
All the rocks you can see around here are mostly of jurassic age , so this is prime dinosaur country .
四周所看到的岩石大多是侏罗纪时代的,因此这里就是原始恐龙的国度。
Gingkos have no close living relatives , and their ancestry can be traced all the way back to the jurassic period .
银杏有没有活着的近亲,它们的祖先可以一直追溯到侏罗纪时期。
Dorset is a rural county , famous more for its jurassic coast than whizzy manufacturing .
多塞特郡是一个乡村,它的侏罗纪时期的海岸比轰鸣的制造业更加出名。
More than 15 % of jurassic and cretaceous ichthyosaurs had suffered the bends before they died , but not a single triassic specimen showed evidence of that sort of injury .
侏罗纪和白垩纪鱼龙生前患有减压病的比例超过15%,但完全没有三叠纪鱼龙罹患该症的证据。
A creature of protean ugliness that seems to have emerged not from the gentle waters of a norwegian fjord but from some jurassic epic , the king crab and everything about it seems founded on gargantuan economies of scale .
Like early natural history museums , which collected the detritus of phenomena both fascinating and only vaguely understood , the museum of jurassic technology is a celebration of the fruits of hungry , curious minds .
Having warm blood and a high metabolic rate may have contributed to the evolutionary success dinosaurs enjoyed for hundreds of millions of years throughout the triassic , jurassic and cretaceous periods .
Rebuilding the mammoth 's genetic code has fired speculation that scientists may one day revive this species and other ice age beasts on the lines of the hollywood movie " jurassic park . "
Will homo sapiens , in other words , define a geological period in the way dinosaurs -- and their vanishing act -- helped mark the jurassic and the cretaceous ?