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Re: (arthritic) Sauropods vs. Gravity - all
In a message dated 3/5/02 12:04:38 PM Eastern Standard Time,
> >Personally, I like the idea that a placental mammal the size of a
> >sauropod could never reproduce, because the young would never fit >through
> its mother's birth canal, due to scaling effects between adult >and infant
> placental mammals.
> I would guess whales are the exception to this.
Sorry. I screwed that up. I was referring to the paper mentioned by HP
Holtz earlier today, hypothesizing that the long *gestation times* of such
large mammals would hinder their establishing sustainable populations. My