In terms of their energy expenditure, he explained, herbivores are at a ten-fold advantage over carnivores, because “ grasses, ferns and leaves do n’t run away ”.
Furthermore, Sander continued, the sauropods didn’t need large carnassial teeth.Instead, they had “grabbing teeth”, suited to pulling up the nutritious, but very coarse, horsetail grasses.
This enabled them to evolve smaller heads and correspondingly long necks.
dfg.deVegetarier seien Fleischfressern in der Energiebilanz um den Faktor zehn überlegen, denn „ Gräser, Farne und Blätter ergreifen nicht die Flucht “.
Zusätzlich brauchten die Sauropoden keine großen Reißzähne, sondern starke „Rupfzähne“, die auch dem nahrhaften, aber sehr rauen Schachtelhalm gewachsen waren.
Dadurch habe der Kopf klein sein können und der Hals umso länger.
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