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RE: Dinosaur Planet, parts 3 & 4

"I would take strong exception to this, noting that the "evidence" for
parental care in the Dinosauria (even Jack's Maiasaura) is very weak and
based mostly on inferences and assumptions. What evidence there is indicates
that the smallest footprints in track sites are half- or more adult size.
There are NO baby tracks with adults."

Logically the comparative weight of infants to adults makes their tracks
less likely to be preserved. Also (and I'm only throwing this out), could
this not be a factor of how long was spent 'in the nest'?
But, yes, in terms of hard facts we should be careful not to start creating
scientific dogma.

David Craven
Bolton Museum

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