Talk:Cloaca
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[edit] Article Content
The inclusion of information about avian reproductive systems seems out of place in this article as well as inaccurate. (Birds do not regrow their reproductive systems prior to mating season; their genitals (testes/ova) enlarge from several hundred to a thousand times in size prior to mating season and revert thereafter.) Redtailed 11:09, 23 September 2006 (UTC)
No bird species have a penis. Some have a phallus, which is a pseudo-penis.
[edit] Marsupials
- Australian Marsupials have a cloaca, right? --Josh 8:14pm (GMT+10)
[edit] External Openings
The monotremes and marsupials have one external opening: the cloaca; the intestines and urethra empty into the birth canal. Most placental mammals have two openings: an anus and a "vagina." For them, the urethra comes to its terminus inside the birth canal. Only primates have a urethral opening that can be considered external in females, giving them (us) three openings. Jedmichael 19:40, 29 December 2006 (UTC)
[edit] Eggs
So do animals with Cloaca poop eggs out their butt, essentially? That isn't made clear.
[edit] Clarification
This sentence seems a bit contradictory:
"Marsupials and monotremes also possess one (in marsupials and a few birds, the genital tract is separate)."
Marsupials can't have both a cloaca and separate urinary and genital tracts. Perhaps somebody who is more knowledgeable about the subject can work on this? 206.21.160.136 (talk) 19:13, 4 February 2008 (UTC)
[edit] Does fish has cloaca?
I think it has, but it's not clear here. Can you help? 89.247.247.164 (talk) 16:50, 20 February 2008 (UTC)no answer? )-: Idvash (talk) 15:35, 21 February 2008 (UTC)
