[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Re: Lack of Running Giant Theropod Tracks

Plausible, yes.  But I'm still interested in the question I asked a
day or two ago: does anyone know ANY extant tetrapod in which the
juveniles can run faster than the adults?  I can't think of any --
which of course doesn't mean there aren't any, hence the question.

I think the following question is strongly related: Is there any
extant animal (apart, perhaps, from humans) that needs more than 15
years to reach full size and has a life expectancy of only 30 years?

Because with the growth curve drawn by Erickson (?), selective
pressure must be very strong for the long time T rex juveniles have a
mass of below 1-2 tons. Thus selective pressure may be different from
extant animals.

                   Priv.-Doz. Dr. Martin Bäker
                   Institut für Werkstoffe
                   Technische Universität Braunschweig
                   Langer Kamp 8
                   38106 Braunschweig
                   Tel.: 00-49-531-391-3073
                   Fax   00-49-531-391-3058
                   e-mail <martin.baeker@tu-bs.de>