Sauropods were huge animals, but why were they so massive - and did they really hold their necks like this? Mark Witton October 30, 2013 Necks question … how did the biggest dinosaurs get so big? Adam Yates, Museum of Central Australia Alongside Tyrannosaurus rex, the basic sauropod dinosaur is one of the most iconic and instantly recognisable of prehistoric animals. Not only is their elegant shape with four columnar limbs, a long muscular…