- Serenoisawell-knownpaleontologist.Theyweren'tracehorses,Serenosaid,buttheycouldmovequickly.Serenobelievesthatthissupercrochadreachedonly80%ofitsfullsize."Thisisanearlydinosaurblueprint,"saysSereno,"withfeaturesthey'llhaveformillionsofyears."他...
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