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Re: Jeholornis and enantiornithines had one functioning ovary like modern birds
David Marjanovic <firstname.lastname@example.org> wrote:
> Complicating factor: kiwi are said to have two functional oviducts, though
> they only use one at a time to produce an egg of awe-inspiring size.
I thought kiwi (_Apteryx_ spp.) had two functional ovaries, but only
one functional oviduct. Ova from both ovaries pass down the same
oviduct (the left one).
But there's no disputing the "awe-inspiring" size of the egg!