153 réponses à ce sujet

[Solomen]

Some lizards reproduce parthenogenically.

Unfertilized salarian eggs become male... which is backwards...

[Sigma Tauri]

Suron wrote...
no I'm not going to go dig up a link but.

you DO realize that women CAN have kids without a male...it will just always be a girl....

hmm..sounds like Asari to me...and considering what they wrote about Asari mental "powers" it's not that far fetched for them to grab traits from another species..nor for them to have children in such a way.

look it up if you don't believe me..scientists found this out....I'm not wasting my time looking for it for you...so whatever.

You mean parthenogenesis? I know the technical term. I also know that certain reptilian species can reproduce without a male and that rabbit ova have been triggered to cleave under certain conditions.

Asari also reproduce through parthogenesis, but "copulate" for the same end as sexual reproduction - to create genetic diversity. Except Bioware isn't willing to tell us how it works. The way asari sexual practices are described are barely scientific, and instead takes on the mystical and telepathic. The nervous system houses a lot of information, but it is not the major repository of genetic information. If the intent is diversity, then the asari could just meld with a cup of semen for all I care. This leads me to conclude that Bioware can't justify the mechanism, and I don't expect them to. They just need to add a few terms, use their imagination, and tada!

But, hey if you're willing to entertain me, reference literature all you want. That doesn't mean I can't call out bull**** for what it essentially is - a chance for young males to engage in sexual relations with a promiscuous race of busty blue babes.

Some people need to take Mass Effect's "science" a little less seriously. It's only as real as the devs' imagination.<_<

Modifié par monkeycamoran, 26 mars 2010 - 04:36 .

[Ray Joel Oh]

abstractwhiz wrote...

A human and monkey (or at least another ape, like a chimpanzee) probably could interbreed - the same ways horses and donkeys can, to produce mules.

That's debateable.  And thankfully no one is testing that theory.

[thedoncarnage]

Shandepared wrote...

You know, if we had decent schools questions like this wouldn't happen.

I think this needs repeating. Just saying.

[WarChicken78]

abstractwhiz wrote...

NICKjnp wrote...

Could a human and a monkey breed together? No. So how could two completely different species from different worlds breed together? They couldn't.

A human and monkey (or at least another ape, like a chimpanzee) probably could interbreed - the same ways horses and donkeys can, to produce mules. However, most pregnancies will spontaneously be aborted by the mother's body as unviable, often before she even knows she is pregnant (This happens ALL the time, btw - Mother Nature doesn't do a very good job of producing viable offspring, and ruthlessly eliminates those she deems unworthy). Any offspring that do survive will almost certainly be sterile, the way mules are.

I suppose the only reason we don't have human-chimp hybrids is that there aren't enough people who are into chimps.

Also, sex with other apes is a bit dangerous, since the average female chimpanzee is stronger than a pro wrestler, and males are even worse. I don't think you want to be near one of those in the throes of passion... 

So you have skipped biology class...
Humans can NOT interbreed even with the species of monkey that is the nearest relative to humans (The Bonobo - a subspecies of the chimp [note tonnactus: chimp. Not shimp].
The Horse and donkeys thing is because they are actually one species that have been bred into different directions.
It is hard to imagine that a Terrier and a Dane can breed, but despite the physical problems, they can, because they are both dogs just bred to completely different sizes. Both of them could most probably breed with a wolf, because that is what they were originally bred from.

[Ray Joel Oh]

WarChicken78 wrote...

So you have skipped biology class...
Humans can NOT interbreed even with the species of monkey that is the nearest relative to humans (The Bonobo - a subspecies of the chimp [note tonnactus: chimp. Not shimp].
The Horse and donkeys thing is because they are actually one species that have been bred into different directions.
It is hard to imagine that a Terrier and a Dane can breed, but despite the physical problems, they can, because they are both dogs just bred to completely different sizes. Both of them could most probably breed with a wolf, because that is what they were originally bred from.

There have been documented accounts of interspecies breeding as high as the family taxon in other animals.  That would mean humans can theoretically breed with other hominids.  http://en.wikipedia.org/wiki/Humanzee

[WarChicken78]

Even your link is very interesting, the first sentence of it dismisses your claim:

The humanzee (also known as the Chuman or Manpanzee) is a hypothetical chimpanzee humanhybrid.

The keyword here is hypothetical. Which means in theory, imagined.


There is that other part:

Looking back millions of years into early human history, current research into human evolution tends to confirm that in some cases, interspecies sexual activity may have been a key part of human evolution. Analysis of the species' genes in 2006 provides evidence that after humans had started to diverge from chimps,
interspecies mating between "proto-human" and "proto-chimps" nonetheless occurred regularly enough to change certain genes in the new gene pool: "A new comparison of the human and chimp genomes suggests that after the two lineages separated, they may have begun interbreeding... A principal finding is that the X chromosomes of humans and chimps appear to have diverged about 1.2 million years more recently than the other chromosomes."
The research suggests that:
There were in fact two splits between the human and chimp lineages, with the first being followed by interbreeding between the two populations and then a second split. The suggestion of a hybridization has startled paleoanthropologists, who nonetheless are 'treating the new genetic data seriously.

This means during the formation of the human species, when (proto-)chimp and (proto-)human have not been that diverse from each other, this most probably was possible and even most probably has happened. But since the speciation process of both humans and chimps are much more evolved now, they are not compatible anymore.
It is not possible anymore.

Modifié par WarChicken78, 26 mars 2010 - 06:19 .

[Azint]

Really? Did you really think it was possible for two very different species to concieve children with one another, putting the asari aside.

Just because they have a levo-amino protein base does not mean they can mate. Humans can not successfully mate with any other species, in fact that is one attribute to a species, to mate with another of the same species.

[Ray Joel Oh]

Uh, "hypothetical" isn't as dismissive a word as you seem to think it is. Like I said, there have been documented cases of different species of the same family taxon successfully breeding, so the logic is that other species of our own family taxon could potentially breed with us, though the odds of success are low. But then the definition of the "hominid" taxon is nebulous and disputed, so whether chimpanzees are close enough to our species to mate is debated.



PS--I don't want to google "interspecies mating" anymore. :C

[Azint]

Ray Joel Oh wrote...

Uh, "hypothetical" isn't as dismissive a word as you seem to think it is. Like I said, there have been documented cases of different species of the same family taxon successfully breeding, so the logic is that other species of our own family taxon could potentially breed with us, though the odds of success are low. But then the definition of the "hominid" taxon is nebulous and disputed, so whether chimpanzees are close enough to our species to mate is debated.

PS--I don't want to google "interspecies mating" anymore. :C

Okay, theoretically possible, but not really something that was supposed to happen. Still, few bizarre cases does not discredit research done to show that this is not a natural occurance.

[cos1ne]

Ray Joel Oh wrote...

abstractwhiz wrote...

A human and monkey (or at least another ape, like a chimpanzee) probably could interbreed - the same ways horses and donkeys can, to produce mules.

That's debateable.  And thankfully no one is testing that theory.

The Soviets had a secret program to make human/chimp hybrids.

Spartas Husky wrote...

personally
I think with Bioware imaginations they made asaris able to read DNA and
blend some of the hidden traits from the other species.

Hence
why asaris you meet and hear about their fathers show that their
personalities closely resemble the "father" and since most "fathers" die
long before they can share common things with their child.

Except, how can you explain biologically how a creature can "read" DNA by linking electrical impulses...because I don't see any nervous system/to nervous system contact happening. Even if there was a way for Asari to read with each other, other species would not have this adaptation. So this explanation only makes sense for purebloods.

Also, have you thought that Asari act like their father's species, even if he dies, because of psychology rather then biology. I mean they don't live in bubbles, they are constantly surrounded by extranet media on their father's species. Couldn't it be a social pressure that you act like your father's species to prove how different you are from the "purebloods".

2nd.
We don't know anything on Turian biology when it comes to reproduction.
Or at least I haven't come across it, if there is some sorry and dont
regard this 2nd point

salarians lay eggs, I believe, krogans
have testicles, which leads me to believe they are mammals.

Like
Rats, for their small bodies they have incredibly large nuts.

But
when it comes to krogans and turians we dont know.

Oh I know we don't know about krogans or turians but at least from an outward appearance turians seem very unmammalian. Also I doubt that either of them are mammals because in concept art they lack navels....although I'll grant that concept art isn't necessary the official stance or fleshed out (I mean they lack genitals of any kind). I also stand by the fact that krogan appear more reptilian then anything, but when they talk of the genophage they speak of stillbirths, so I assume they have internally fertilized eggs and I imagine they give birth to an egg sack full of newborn krogan. Of course that's just my personal imagination, .

Oh and fun fact, most animal species have testes, not just mammals. It's just in many cases the testes are internal.

[WarChicken78]

Ray Joel Oh wrote...

Uh, "hypothetical" isn't as dismissive a word as you seem to think it is. Like I said, there have been documented cases of different species of the same family taxon successfully breeding, so the logic is that other species of our own family taxon could potentially breed with us, though the odds of success are low. But then the definition of the "hominid" taxon is nebulous and disputed, so whether chimpanzees are close enough to our species to mate is debated.

PS--I don't want to google "interspecies mating" anymore. :C

Yes, of cause hypothetical isn't absolutely dismissive. It is a not (yet) observed but eventually possible expression.

But as your Wikipedia link shows, humans and chimps are too far evolved from each other to still have the possibility to do so. But if two species arend that far apart yet, interspecies breeding is possible and most probably has happened during the evolution of the human species - thats whats your article is saying, too.

In a ME2 Nutshell:

Jacob: Do you really think humans and chimps are capable of that?
Miranda: ...not anymore.

[Ray Joel Oh]

Azint wrote...
Okay, theoretically possible, but not really something that was supposed to happen. Still, few bizarre cases does not discredit research done to show that this is not a natural occurance.

Sure, that's all I mean.  And it's not as simple as a horse and donkey producing a mule, since horses and donkeys are in the same genus.

Shandepared wrote...

I thought the only surviving hominids
on Earth were humans.

(do correct me if I'm wrong)

All
great apes are hominids.  Though like I said, the classification keeps
being adjusted.

Modifié par Ray Joel Oh, 26 mars 2010 - 06:38 .

[Weiser_Cain]

abstractwhiz wrote...

Weiser_Cain wrote...

No but Turians could eat Quarians.

But could a Quarian drink a liquefied Turian on a dare and still come out of it looking pretty? 

A pretty corpse. Scratch that, a strong Quarian could come out of it alive with a lot of help. It'd take a flood of antibiotics.

[abstractwhiz]

WarChicken78 wrote...

So you have skipped biology class...
Humans can NOT interbreed even with the species of monkey that is the nearest relative to humans (The Bonobo - a subspecies of the chimp [note tonnactus: chimp. Not shimp].
The Horse and donkeys thing is because they are actually one species that have been bred into different directions.
It is hard to imagine that a Terrier and a Dane can breed, but despite the physical problems, they can, because they are both dogs just bred to completely different sizes. Both of them could most probably breed with a wolf, because that is what they were originally bred from.

Horses and donkeys are the same species?  They don't even have the same number of chromosomes! (And all dogs do - in fact they have the same amount as wolves.)

In light of this, the only way I can make sense of your post is to assume that you meant that donkeys and horses evolved from the same ancestor. This still doesn't contradict what I said, since the same thing is true of humans and bonobos too. Did you mean something different?

(Also, fun fact while I'm on the subject of chromosomes - humans have one less chromosome pair than the other great apes. At some point after our lines diverged, two of our chromosomes fused. You can actually see the results of the fusion in our genome, which is wicked. )

So even though we don't have any cases of human-chimp hybrids, similar cases in the rest of the animal kingdom seem to indicate that it's just a matter of probabilities. The chance of viable offspring is low (though nonzero), and we'll need a lot of human-chimp matings to produce something that survives. And for various reasons, people don't really want to test this out. <_<

[Solomen]

Shandepared wrote...

Weiser_Cain wrote...

A pretty corpse. Scratch that, a strong Quarian could come out of it alive with a lot of help. It'd take a flood of antibiotics.

Just cook him thoroughly and you'll be fine.

Quarians are allergic to everything.

[Solomen]

abstractwhiz wrote...

WarChicken78 wrote...

So you have skipped biology class...
Humans can NOT interbreed even with the species of monkey that is the nearest relative to humans (The Bonobo - a subspecies of the chimp [note tonnactus: chimp. Not shimp].
The Horse and donkeys thing is because they are actually one species that have been bred into different directions.
It is hard to imagine that a Terrier and a Dane can breed, but despite the physical problems, they can, because they are both dogs just bred to completely different sizes. Both of them could most probably breed with a wolf, because that is what they were originally bred from.

Horses and donkeys are the same species?  They don't even have the same number of chromosomes! (And all dogs do - in fact they have the same amount as wolves.)

In light of this, the only way I can make sense of your post is to assume that you meant that donkeys and horses evolved from the same ancestor. This still doesn't contradict what I said, since the same thing is true of humans and bonobos too. Did you mean something different?

(Also, fun fact while I'm on the subject of chromosomes - humans have one less chromosome pair than the other great apes. At some point after our lines diverged, two of our chromosomes fused. You can actually see the results of the fusion in our genome, which is wicked. )

So even though we don't have any cases of human-chimp hybrids, similar cases in the rest of the animal kingdom seem to indicate that it's just a matter of probabilities. The chance of viable offspring is low (though nonzero), and we'll need a lot of human-chimp matings to produce something that survives. And for various reasons, people don't really want to test this out. <_<

The implications are... disturbing

[WarChicken78]

abstractwhiz wrote...
Horses and donkeys are the same species?  They don't even have the same number of chromosomes! (And all dogs do - in fact they have the same amount as wolves.)

In light of this, the only way I can make sense of your post is to assume that you meant that donkeys and horses evolved from the same ancestor. This still doesn't contradict what I said, since the same thing is true of humans and bonobos too. Did you mean something different?

Nah, thats what I meant. And to back myself up with that neat Wikipedia entry again:

Having different numbers of chromosomes
is not an absolute barrier to hybridization. Similar mismatches are
relatively common in existing species, a phenomenon known as chromosomal polymorphism.

To be honest, I didn't know if horse and donkey are one species or two close relative ones. Now that you say they have a different number of Chromosomes it's clear they're not the same species, but still close enough to breed.

But we're largely getting off-topic with our biology/genetics discussion...

Modifié par WarChicken78, 26 mars 2010 - 08:01 .

[Weiser_Cain]

Nah, I think Humans have too many critical mutations for anything to be viable

[Solomen]

Weiser_Cain wrote...

Nah, I think Humans have too many critical mutations for anything to be viable

They've crossed monkeys and rats with jellyfish... but that is chimeric recombination

[GodWood]

Could turians and quarians have sex?

Yes.



Could they successfully produce offspring naturally?

No.

[Dethateer]

monkeycamoran wrote...

Biioware could bull**** you on how an mass effect drive can work, but they couldn't write-in a believable fake biology.

No, they can't. Also, if the overall human school system was better, people would stop saying "sentient" instead of "sapient" and "race" instead of  "species". And they'd know what the f**k "biotic" means.