BBC都经常胡说８道，《与恐龙同行》中文字幕说恐鳄只有1吨，事实上暴龙都很像已有7吨。
转自：
http://www.oursci.org/bbs/sinodino/archiver/?tid-3189.html 恐鳄是生活在六千七百万年前，体长可达12至15米，
普鲁斯鳄的体长是15米，体重约18吨，大约是恐鳄体重的3倍多，而体型又要长了50%。
说沧龙中的最大的海诺龙１７米时有２０吨，我觉得不算夸张，可以从这角度来看，沧龙身型跟巨鳄差不多，不过是脚换成鱼鳍，可能没有巨鳄的皮甲。
但说滑齿龙２５米时有１５０吨觉得是太离谱了。
龙王鲸有６０吨一听便知是假的。
http://www.plesiosaur.com/plesiosaurs/liopleurodon.php 甚至外语网页指滑齿龙即使是１６～２０米的滑齿龙亦只有２０吨。
There is evidence of a much larger pliosaur in the Oxford and Kimmeridge Clays. Very large isolated elements such as vertebrae and a large lower jaw have been found. These cannot be identified as Liopleurodon and it seems most likely that they belong to an unknown and very large taxon. A lower jaw, in the collection of the Oxford Museum is from the Kimmeridge Clay and reportedly measures 3 meters in length (though I haven't measured it myself). Leslie Noé thinks it is from an undescribed taxon. Scaling up on the same basis as before, this would suggest an animal as much as 12-15 meters in length, and weighing therefore in the region of 10 tons. There have been unconfirmed reports of a lower jaw found on the Dorset coast measuring as much as 4 meters, which could therefore measure 16 - 20 meters in length, and weigh as much as 20 tons.
而且科学家一般判断物种能长的最大体长是已发现最大个体的20%，简单来说，一般科学家会夸大20%。
So why was the size exaggerated?
It has been said that science is not the search for truth, but the search for funding. Publicity helps to get funding. A medium-sized pliosaur, or a small, timid dinosaur will not attract much public attention no matter how interesting they may be to researchers. This can lead to a mathematically rather sloppy approach and tendency to treat the uppermost end of the size estimates as being the norm. Another argument which I have heard goes like this: "We have found an animal up to 12 meters long. We can realistically assume that the specimens we have found are not the largest in the population. Therefore, we can estimate the size of the largest animal in the population as rather larger than the largest we have found - say 20% longer. Therefore we can say with some justification that the largest animals of this type were 15 meters long."
根本这种生物是被BBC放衞星放得太夸张，於外国人眼中根本没有BBC说得这麼强。
