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>> So is the Comodo Dragon, apparently. One of the only venemous reptiles
>> in the world...
>
> Interesting ... I always thought it was because their mouth was so full
> of nasty bacteria.
So did everybody else, apparently. It has only recently become known
that they have actual venom.
> Also didn't know there was another set of chromosomes for determining
> sex. I always thought it was XY, in the dragon's case, it's ZW, which
> apparently allows for parthenogenesis, producing male offspring without
> the need for the female laying the eggs to mate.
Sure, by no means all animals use chromosomal sex determination.
Crocodiles use the temperature of the eggs during their development, for
example. I'm told there's a species of Gobi (that's a fish) that are all
born male, and all grow up to be female. And let's not even get into the
number of animals which are simultaneously male *and* female... It's a
weird, weird world out there!
> Amazing what you can learn by hanging out on the POV newsgroups :)
Uh, affirm that! ;-)
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Invisible <voi### [at] dev null> wrote:
> Crocodiles use the temperature of the eggs during their development, for
> example. I'm told there's a species of Gobi (that's a fish) that are all
> born male, and all grow up to be female. And let's not even get into the
> number of animals which are simultaneously male *and* female... It's a
> weird, weird world out there!
How about no males at all:
http://en.wikipedia.org/wiki/Desert_Grassland_Whiptail_Lizard
--
- Warp
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Warp wrote:
> How about no males at all:
> http://en.wikipedia.org/wiki/Desert_Grassland_Whiptail_Lizard
...or that, yes. ;-)
I reaffirm: It's a weird world out there.
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: 4bed4b33$1@news.povray.org...
> I reaffirm: It's a weird world out there.
An all-female species? How banal. Just look at these critters:
http://www.newscientist.com/article/dn18834-zoologger-the-most-bizarre-life-story-on-earth.html
I've read it several times and I still can't figure out who is having sex
with who.
BTW, there goes your afternoon: http://www.newscientist.com/topic/zoologger
G.
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Gilles Tran wrote:
> BTW, there goes your afternoon: http://www.newscientist.com/topic/zoologger
Oh, gee, thanks for that! >_<
http://www.newscientist.com/gallery/dn17247-top-ten-new-species/2
Weirdest snail shell ever?
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Mike Raiford wrote:
> 1. I wasn't aware platypus's were venomous.
>
> 2. It appears while not fatal, I definitely wouldn't want to be spurred
> by one.
>
> 3. Why only the males? Is this to resolve territory disputes?
Virtually anything that makes males more formidable than females is for
the purpose of competition over the wimminfolk.
Regards,
John
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Australia seems a dangerous place to live in. Poisonous mammals, poisonous
spiders, snakes, extremely poisonous jellyfish, even very poisonous toads in
the garden. The alligators seem quite harmless in comparison...
How do Aussies manage to surive to an age to be able to reproduce?
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Invisible wrote:
> Sure, by no means all animals use chromosomal sex determination.
>
> Crocodiles use the temperature of the eggs during their development, for
> example. I'm told there's a species of Gobi (that's a fish) that are all
> born male, and all grow up to be female. And let's not even get into the
> number of animals which are simultaneously male *and* female... It's a
> weird, weird world out there!
And what we miss from all this variety is the thing in common:
Virtually all multicellular life reproduces sexually at some phase.
Regards,
John
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Am 21.05.2010 01:50, schrieb John VanSickle:
> And what we miss from all this variety is the thing in common: Virtually
> all multicellular life reproduces sexually at some phase.
Then again, there's no such thing as a general rule to which all life
does adhere.
Apparently there /are/ multicellular organisms - even vertebrates - that
have given up sexual reproduction entirely.
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clipka wrote:
> Am 21.05.2010 01:50, schrieb John VanSickle:
>
>> And what we miss from all this variety is the thing in common: Virtually
>> all multicellular life reproduces sexually at some phase.
>
> Then again, there's no such thing as a general rule to which all life
> does adhere.
Which is why I said "virtually all" instead of "all." There are
exceptions, but how many are there out of the many thousands of
identified species of life?
Regards,
John
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