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Kehhlyr
ǝʞɐɔ sǝʌoן
United Kingdom
8173 Posts |
 Posted - 02/07/2009 : 03:03:05
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Just remembered this while I was answering an intros question, and thought i'd pass it on.
Had to google it to remember the full info, but it shows that I do still retain some of my Science texts in my head somewhere.
Cloning by Parthenogenesis
A snake is born to a mother that did not have a mate. Although this may sound
impossible, or like some headline in a tabloid magazine, this can actually occur in nature.
Parthenogenesis (pahr thuh noh JEHN uh sihs) is a type of reproduction in which a new
individual develops from an unfertilized egg. Since there is no male that contributes
genetic material, the offspring is a clone (genetically identical) of the mother. Clones are
usually produced in nature by asexual reproduction. Parthenogenesis, however, is a
special form of cloning.
Why Does Parthenogenesis Occur?
Parthenogenesis in snakes has usually occurred in older females that have lived many
years without male companionship, such as those in a zoo. It is hypothesized that the
mother snake copies her own chromosomes in place of the missing father’s
chromosomes, thereby self-fertilizing her egg. Other scientists think that after a long
absence of males, some unknown signal (such as a hormone) triggers the egg to start
dividing.
http://www.nature.com/hdy/journal/v90/n2/full/6800210a.html
Might be interesting for some people.
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-=Kehhlyr - The Resident Loon
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Ell
Sub Adult
United Kingdom
1640 Posts |
Posted - 02/07/2009 : 09:36:16
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| Komodo dragons do that :D |
 
1.0.0 Normal corn snake - Dusk
0.1.0 Strawberry Snow Stripe corn snake - Dawn
0.1.0 Harlequin Crested Gecko - Stickles
1.0.0 Sable Syrian Hamster - CoCo
0.1.0 Hognose snake - Truffles |
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n/a
deleted
589 Posts |
Posted - 02/07/2009 : 10:57:43
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good post Kehhl...
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Rat World, Frozen Rats/Multis/Gerbils/Mice
T.0845 250 0020
2.3.0. Royals.1.2.0 Corns. RIP Sadie
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lee2308
The Corn Snake Moderator
United Kingdom
3348 Posts |
Posted - 02/07/2009 : 12:33:39
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| very interesting |
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n/a
deleted
589 Posts |
Posted - 02/07/2009 : 14:23:03
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quote:
Originally posted by lee2308
very interesting
can you say the word...lol...  |
Rat World, Frozen Rats/Multis/Gerbils/Mice
T.0845 250 0020
2.3.0. Royals.1.2.0 Corns. RIP Sadie
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PunkAsF82
Yearling
United Kingdom
909 Posts |
Posted - 02/07/2009 : 16:05:19
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most amphibians do this.
Also, a large number of extotherms, mainly phibs, will change sex in a single sex environment One way to beat nature  |
~~ My Zoo ~~
1.0.0 Bearded Dragon - Cooper
0.1.0 Amel corn - Lucky
0.1.0 Normal Leopard Gecko - Layla
1.1.0 Cats - Zelda the Maine Coon & Link the Ragdoll X Tabby
0.0.50 Malawi Cichlids
0.0.20 Community fish tank
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Kehhlyr
ǝʞɐɔ sǝʌoן
United Kingdom
8173 Posts |
Posted - 02/07/2009 : 21:08:53
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| Clown Fish can change sex as well. Was watching an interesting docu about them the other day, apparently they live in a very hierarchical society, with each one being exactly 20% smaller than the next one up. |
-=Kehhlyr - The Resident Loon
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PunkAsF82
Yearling
United Kingdom
909 Posts |
Posted - 02/07/2009 : 23:02:22
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hehe thats cool
Almost as cool as a praying mantis eating its lovers head after mating, to show males the real leaders (and to limit food compitition of course lol) |
~~ My Zoo ~~
1.0.0 Bearded Dragon - Cooper
0.1.0 Amel corn - Lucky
0.1.0 Normal Leopard Gecko - Layla
1.1.0 Cats - Zelda the Maine Coon & Link the Ragdoll X Tabby
0.0.50 Malawi Cichlids
0.0.20 Community fish tank
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n/a
deleted
87 Posts |
Posted - 03/07/2009 : 06:49:08
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| that's amazing! i knew amphibian could do it but i had no idea that snakes could... |
the amazing colour of the cornsnake, as it glides through the feild, never a mistake
so as not to wake
the hapless prey before it, this may as well roll over and close it's eyes as the silent hunter shall always get his prize.
the forked tounge can smell you mouse,red eyes can see you stir, if she does not wake and run now, that will be the end of her. |
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n/a
deleted
14 Posts |
Posted - 03/07/2009 : 11:27:33
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| great post! |
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heatseeker872591
Hatchling
United Kingdom
355 Posts |
Posted - 05/07/2009 : 13:08:03
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| haha i heard that a female komodo in london zoo done it. does sany one remember the 1998 movie godzilla? the lizard in that done it aswell tho that was referred to as "Asexual reproduction" its a good topic tho |
[URL=http://www.mybannermaker.com/link.php?nurl=http%3A%2F%2Fwww.mybannermaker.com] [/URL] |
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Mancunian
Hatchling
United Kingdom
384 Posts |
Posted - 05/07/2009 : 14:53:44
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| The Komodo Dragon at Chester Zoo did this also. All the offspring were clones. One of the true miracles of nature. |
0.1.1 Corn Snakes (Elaphe guttata) CB07 Jasper (Amelanastic) CB07 Chicomecoatl (Anerythristic Aztec)
1.0.0 Royal Python (Python regius) CB07 Tibo (Normal)
1.1.0 California Kingsnakes (Lampropeltis getula californiae) CB05 Luka (B&W Banded) CB06 Lucien (Albino Banded)
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HannahB
The Corn Snake Moderator
United Kingdom
5491 Posts |
Posted - 06/07/2009 : 19:59:30
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quote:
Originally posted by PunkAsF82
Almost as cool as a praying mantis eating its lovers head after mating, to show males the real leaders (and to limit food compitition of course lol)
i thought that the male praying mantis couldnt mate with its head attached to its body still.. lol glad im not a male praying mantis! |
2.0 Normal Royal Pythons - Q and Little One
1.0 Chihauhaun Mountain Kingsnake - Simba
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PunkAsF82
Yearling
United Kingdom
909 Posts |
Posted - 06/07/2009 : 21:03:11
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haha so am i. just proves that girls rule  |
~~ My Zoo ~~
1.0.0 Bearded Dragon - Cooper
0.1.0 Amel corn - Lucky
0.1.0 Normal Leopard Gecko - Layla
1.1.0 Cats - Zelda the Maine Coon & Link the Ragdoll X Tabby
0.0.50 Malawi Cichlids
0.0.20 Community fish tank
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Topic |
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Parthenogenesis.
