Sentences with phrase «juvenile hadrosaurs»
A mere 3 % of the tracks represent juvenile hadrosaurs, a rarity that strongly suggests the young of this species experienced a rapid growth spurt and therefore spent only a short time at this vulnerable size, the researchers report online this week in Geology.
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The presence of juveniles in the herd also strongly hints that these creatures spent their entire lives in the Arctic, the team says; hadrosaurs of that size wouldn't have had the size or stamina to migrate to and from warmer climates during wintertime, as some scientists have proposed.