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In urma analizei fosilelor si a ratei de crestere, cercetatorii au aproximat ca la varsta de 10 ani, un dinozaur ierbivor devenea matur, atingand o inaltime de 9 metri, in vreme ce mancatorii deveneau adulti abia in jurul varstei de 20-30 de ani.
Cercetatorii sunt de parere ca diferenta de marime ii facea pe pradatori sa vaneze numai exemplarele tinere, deoarece diferenta de inaltime era minima.
“Daca supravietuia adolescentei si devenea adult, Hypacrosaurus se afla in siguranta, datorita inaltimii sale impresionante”, declara Lisa Noelle Cooper, doctorand la Kent State University in Ohio.
Sursa: Live Science
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