Scientists record first known ‘virgin birth’ in female crocodile in Costa Rica



Scientists have recorded the first known case of a “virgin birth” in a female crocodile that had no contact with males for about 16 years.The reptile was able to produce a fully formed foetus that was 99.9% genetically identical to her.

The researchers said this discovery, reported in the journal Biology Letters, provides “tantalizing insights”, suggesting its evolutionary ancestors such as the dinosaurs may also have been capable of self-reproduction. Also known as facultative parthenogenesis, virgin birth has been documented in species of birds, fish, lizards, and snakes, but never before in crocodiles. It is the process by which an egg develops into an embryo without fertilization by sperm.

The American crocodile (Crocodylus acutus) was taken into captivity in 2002 when she was two years old and placed in an enclosure in Costa Rica. She remained there alone for the next 16 years.
In January 2018, zookeepers discovered a clutch of 14 eggs in the enclosure. These eggs did not hatch but one contained a fully formed foetus.
Genetic analysis of the tissues from the foetus’s heart and from the mother’s shed skin revealed a 99.9% match – confirming the offspring had no father.
Facultative parthenogenesis is rare but is thought to occur when a species faces challenging or unfavourable conditions, such as environmental stress or lack of mates.

https://www.theguardian.com/environment/2023/jun/07/scientists-record-first-known-virgin-birth-in-female-crocodile-in-costa-rica

Scientists Discover Genetic Secret of Virgin Birth
By UNIVERSITY OF CAMBRIDGE AUGUST 8, 2023

While the concept of virgin birth has been historically linked to religious narratives like the birth of Jesus Christ to the Virgin Mary, researchers have now discovered a genetic trigger for virgin births in fruit flies. Once activated, this ability can be passed down to subsequent female generations. When devoid of males, these flies opt for virgin birth, a survival tactic ensuring the species’ continuation.

For the first time, scientists have identified a genetic cause of virgin birth, and once activated, this ability is inherited by subsequent generations of females.
Scientists have managed to induce virgin birth in an animal that usually reproduces sexually: the fruit fly Drosophila melanogaster.

Once induced in this fruit fly, this ability is passed on through the generations: the offspring can reproduce either sexually if there are males around, or by virgin birth if there aren’t.

For most animals, reproduction is sexual – it involves a female’s egg being fertilized by a male’s sperm. Virgin birth, or ‘parthenogenesis’, is the process by which an egg develops into an embryo without fertilization by sperm – a male is not needed.

The offspring of a virgin birth are not exact clones of their mother but are genetically very similar, and are always female.

"We are the first to show that you can engineer virgin births to happen in an animal – it was very exciting to see a virgin fly produce an embryo able to develop to adulthood, and then repeat the process,” said Dr Alexis Sperling, a researcher at the University of Cambridge and first author of the paper.

She added: “In our genetically manipulated flies, the females waited to find a male for half their lives – about 40 days – but then gave up and proceeded to have a virgin birth.”

In the experiments, only 1-2% of the second generation of female flies with the ability for virgin birth produced offspring, and this occurred only when there were no male flies around. When males were available, the females mated and reproduced in the normal way.

Switching to a virgin birth can be a survival strategy: a one-off generation of virgin births can help to keep the species going.

The study was recently published in the journal Current Biology.

To achieve their results, researchers first sequenced the genomes of two strains of another species of fruit fly, called Drosophila mercatorum. One strain needs males to reproduce, the other reproduces only through virgin birth. They identified the genes that were switched on, or switched off, when the flies were reproducing without fathers.

With the candidate genes for virgin birth ability identified in Drosophila mercatorum, the researchers altered what they thought were the corresponding genes in the model fruit fly, Drosophila melanogaster. It worked: Drosophila melanogaster suddenly acquired the ability for virgin birth.
https://scitechdaily.com/scientists-discover-genetic-secret-of-virgin-birth/

If the handler is male

Forget it

Mad O...

illicit:
If the handler is male

Forget it

Wittyness

wittywriter:
Mad O...





Wittyness

Against a 16 years old croc...

Forget it ..

illicit:
If the handler is male

Forget it

illicit:
If the handler is male

Forget it

Mind explaining yourself further?

Miracood2:


Mind explaining yourself further?

Hmmmm

The male handler handled it well nah

illicit:
If the handler is male. Forget it

Does the sex/gender of the "handler" in the case of the fruit flies also matter ?

Kobojunkie:
Does the sex/gender of the "handler" in the case of the fruit flies also matter ?

illicit:

There are two articles presented. The one about the virgin birth in crocodile, and the second about the discovery of genetics secret of births.

Kobojunkie:
There are two articles presented. The one about the virgin birth in crocodile, and the second about the discovery of genetics secret of births.

The one about the crocodile

I don't trust the handler

Mother nature has a solution to everything.

Kobojunkie:
Scientists record first known ‘virgin birth’ in female crocodile in Costa Rica



Scientists have recorded the first known case of a “virgin birth” in a female crocodile that had no contact with males for about 16 years.The reptile was able to produce a fully formed foetus that was 99.9% genetically identical to her.

The researchers said this discovery, reported in the journal Biology Letters, provides “tantalizing insights”, suggesting its evolutionary ancestors such as the dinosaurs may also have been capable of self-reproduction. Also known as facultative parthenogenesis, virgin birth has been documented in species of birds, fish, lizards, and snakes, but never before in crocodiles. It is the process by which an egg develops into an embryo without fertilization by sperm.

The American crocodile (Crocodylus acutus) was taken into captivity in 2002 when she was two years old and placed in an enclosure in Costa Rica. She remained there alone for the next 16 years.
In January 2018, zookeepers discovered a clutch of 14 eggs in the enclosure. These eggs did not hatch but one contained a fully formed foetus.
Genetic analysis of the tissues from the foetus’s heart and from the mother’s shed skin revealed a 99.9% match – confirming the offspring had no father.
Facultative parthenogenesis is rare but is thought to occur when a species faces challenging or unfavourable conditions, such as environmental stress or lack of mates.

https://www.theguardian.com/environment/2023/jun/07/scientists-record-first-known-virgin-birth-in-female-crocodile-in-costa-rica

PINKY: So, We have Our Crocodilia Jesuses Now, BRAIN.



BRAIN: Naso I dey See am so ooo

kkins25:
Mother nature has a solution to everything.

Kobojunkiee:
Scientists Discover Genetic Secret of Virgin Birth
By UNIVERSITY OF CAMBRIDGE AUGUST 8, 2023

While the concept of virgin birth has been historically linked to religious narratives like the birth of Jesus Christ to the Virgin Mary, researchers have now discovered a genetic trigger for virgin births in fruit flies. Once activated, this ability can be passed down to subsequent female generations. When devoid of males, these flies opt for virgin birth, a survival tactic ensuring the species’ continuation.

For the first time, scientists have identified a genetic cause of virgin birth, and once activated, this ability is inherited by subsequent generations of females.
Scientists have managed to induce virgin birth in an animal that usually reproduces sexually: the fruit fly Drosophila melanogaster.

Once induced in this fruit fly, this ability is passed on through the generations: the offspring can reproduce either sexually if there are males around, or by virgin birth if there aren’t.

For most animals, reproduction is sexual – it involves a female’s egg being fertilized by a male’s sperm. Virgin birth, or ‘parthenogenesis’, is the process by which an egg develops into an embryo without fertilization by sperm – a male is not needed.

The offspring of a virgin birth are not exact clones of their mother but are genetically very similar, and are always female.

"We are the first to show that you can engineer virgin births to happen in an animal – it was very exciting to see a virgin fly produce an embryo able to develop to adulthood, and then repeat the process,” said Dr Alexis Sperling, a researcher at the University of Cambridge and first author of the paper.

She added: “In our genetically manipulated flies, the females waited to find a male for half their lives – about 40 days – but then gave up and proceeded to have a virgin birth.”

In the experiments, only 1-2% of the second generation of female flies with the ability for virgin birth produced offspring, and this occurred only when there were no male flies around. When males were available, the females mated and reproduced in the normal way.

Switching to a virgin birth can be a survival strategy: a one-off generation of virgin births can help to keep the species going.

The study was recently published in the journal Current Biology.

To achieve their results, researchers first sequenced the genomes of two strains of another species of fruit fly, called Drosophila mercatorum. One strain needs males to reproduce, the other reproduces only through virgin birth. They identified the genes that were switched on, or switched off, when the flies were reproducing without fathers.

With the candidate genes for virgin birth ability identified in Drosophila mercatorum, the researchers altered what they thought were the corresponding genes in the model fruit fly, Drosophila melanogaster. It worked: Drosophila melanogaster suddenly acquired the ability for virgin birth.
https://scitechdaily.com/scientists-discover-genetic-secret-of-virgin-birth/

Sperling stated that although recent research has discovered a way to “switch on” virgin births in fruit flies, it is unlikely that this approach will work in mammals, even though parthenogenesis has been observed in animals such as lizards and honey bees.

“Mammals are very separate and it is not a natural occurring phenomenon,” said Sperling. However, she said that the research helped to “understand the beauty of life itself” and “this different type of reproduction.

Kobojunkie:
Scientists record first known ‘virgin birth’ in female crocodile in Costa Rica



Scientists have recorded the first known case of a “virgin birth” in a female crocodile that had no contact with males for about 16 years.The reptile was able to produce a fully formed foetus that was 99.9% genetically identical to her.

The researchers said this discovery, reported in the journal Biology Letters, provides “tantalizing insights”, suggesting its evolutionary ancestors such as the dinosaurs may also have been capable of self-reproduction. Also known as facultative parthenogenesis, virgin birth has been documented in species of birds, fish, lizards, and snakes, but never before in crocodiles. It is the process by which an egg develops into an embryo without fertilization by sperm.

The American crocodile (Crocodylus acutus) was taken into captivity in 2002 when she was two years old and placed in an enclosure in Costa Rica. She remained there alone for the next 16 years.
In January 2018, zookeepers discovered a clutch of 14 eggs in the enclosure. These eggs did not hatch but one contained a fully formed foetus.
Genetic analysis of the tissues from the foetus’s heart and from the mother’s shed skin revealed a 99.9% match – confirming the offspring had no father.
Facultative parthenogenesis is rare but is thought to occur when a species faces challenging or unfavourable conditions, such as environmental stress or lack of mates.

https://www.theguardian.com/environment/2023/jun/07/scientists-record-first-known-virgin-birth-in-female-crocodile-in-costa-rica

What a Mary Crocodile

Kobojunkie:
Scientists record first known ‘virgin birth’ in female crocodile in Costa Rica



Scientists have recorded the first known case of a “virgin birth” in a female crocodile that had no contact with males for about 16 years.The reptile was able to produce a fully formed foetus that was 99.9% genetically identical to her.

The researchers said this discovery, reported in the journal Biology Letters, provides “tantalizing insights”, suggesting its evolutionary ancestors such as the dinosaurs may also have been capable of self-reproduction. Also known as facultative parthenogenesis, virgin birth has been documented in species of birds, fish, lizards, and snakes, but never before in crocodiles. It is the process by which an egg develops into an embryo without fertilization by sperm.

The American crocodile (Crocodylus acutus) was taken into captivity in 2002 when she was two years old and placed in an enclosure in Costa Rica. She remained there alone for the next 16 years.
In January 2018, zookeepers discovered a clutch of 14 eggs in the enclosure. These eggs did not hatch but one contained a fully formed foetus.
Genetic analysis of the tissues from the foetus’s heart and from the mother’s shed skin revealed a 99.9% match – confirming the offspring had no father.
Facultative parthenogenesis is rare but is thought to occur when a species faces challenging or unfavourable conditions, such as environmental stress or lack of mates.

https://www.theguardian.com/environment/2023/jun/07/scientists-record-first-known-virgin-birth-in-female-crocodile-in-costa-rica

That is insightful.

Kobojunkiee:
Scientists Discover Genetic Secret of Virgin Birth
By UNIVERSITY OF CAMBRIDGE AUGUST 8, 2023

While the concept of virgin birth has been historically linked to religious narratives like the birth of Jesus Christ to the Virgin Mary, researchers have now discovered a genetic trigger for virgin births in fruit flies. Once activated, this ability can be passed down to subsequent female generations. When devoid of males, these flies opt for virgin birth, a survival tactic ensuring the species’ continuation.

For the first time, scientists have identified a genetic cause of virgin birth, and once activated, this ability is inherited by subsequent generations of females.
Scientists have managed to induce virgin birth in an animal that usually reproduces sexually: the fruit fly Drosophila melanogaster.

Once induced in this fruit fly, this ability is passed on through the generations: the offspring can reproduce either sexually if there are males around, or by virgin birth if there aren’t.

For most animals, reproduction is sexual – it involves a female’s egg being fertilized by a male’s sperm. Virgin birth, or ‘parthenogenesis’, is the process by which an egg develops into an embryo without fertilization by sperm – a male is not needed.

The offspring of a virgin birth are not exact clones of their mother but are genetically very similar, and are always female.

"We are the first to show that you can engineer virgin births to happen in an animal – it was very exciting to see a virgin fly produce an embryo able to develop to adulthood, and then repeat the process,” said Dr Alexis Sperling, a researcher at the University of Cambridge and first author of the paper.

She added: “In our genetically manipulated flies, the females waited to find a male for half their lives – about 40 days – but then gave up and proceeded to have a virgin birth.”

In the experiments, only 1-2% of the second generation of female flies with the ability for virgin birth produced offspring, and this occurred only when there were no male flies around. When males were available, the females mated and reproduced in the normal way.

Switching to a virgin birth can be a survival strategy: a one-off generation of virgin births can help to keep the species going.

The study was recently published in the journal Current Biology.

To achieve their results, researchers first sequenced the genomes of two strains of another species of fruit fly, called Drosophila mercatorum. One strain needs males to reproduce, the other reproduces only through virgin birth. They identified the genes that were switched on, or switched off, when the flies were reproducing without fathers.

With the candidate genes for virgin birth ability identified in Drosophila mercatorum, the researchers altered what they thought were the corresponding genes in the model fruit fly, Drosophila melanogaster. It worked: Drosophila melanogaster suddenly acquired the ability for virgin birth.
https://scitechdaily.com/scientists-discover-genetic-secret-of-virgin-birth/

The fruit fly too... May the forces of evolution be with you.

Konquest:
That is insightful.

Indeed!

Konquest:

The fruit fly too... May the forces of evolution be with you.

What forces?

Kobojunkie:
Indeed!

You're weird

Draslo:
■ You're weird

I don't follow!

Kobojunkie:
I don't follow!

Sometimes you sound like a hardcore Christian and also as a strong feminist. How do both go together without contradiction?

Draslo:
■ Sometimes you sound like a hardcore Christian and also as a strong feminist. How do both go together without contradiction?

I have never been a hard-core Christian, neither have I ever been a strong feminist. I am simply a follower of Jesus Christ. The confusion you have of my person is yours, not mine.

Kobojunkie:
I have never been a hard-core Christian, neither have I ever been a strong feminist. I am simply a follower of Jesus Christ. The confusion you have of my person is yours, not mine.

Understood.

Kobojunkie:
I have never been a hard-core Christian, neither have I ever been a strong feminist. I am simply a follower of Jesus Christ. The confusion you have of my person is yours, not mine.

I always wonder what teaching of Jesus Christ adds anything to human civilization to.make him worth following. Can you enlighten me on such teachings?

lawani:
■ I always wonder what teaching of Jesus Christ adds anything to human civilization to.make him worth following. Can you enlighten me on such teachings?

Why must His teachings add to human civilization? As He Himself said, He is only worth following for those who qualifyto follow Him -- He is of no use or real value to those who do not qualify to have Him.

Kobojunkie:
Why must His teachings add to human civilization? As He Himself said, He is only worth following for those who qualifyto follow Him -- He is of no use or real value to those who do not qualify to have Him.

I am asking you as one of his followers what you gained as a result of following him compared to what you lose daily

lawani:
■ I am asking you as one of his followers what you gained as a result of following him compared to what you lose daily

I gained Jesus Christ -- the benefits of Him. I didn't lose anything worth noting for it though.

Kobojunkie:
Scientists record first known ‘virgin birth’ in female crocodile in Costa Rica



Scientists have recorded the first known case of a “virgin birth” in a female crocodile that had no contact with males for about 16 years.The reptile was able to produce a fully formed foetus that was 99.9% genetically identical to her.

The researchers said this discovery, reported in the journal Biology Letters, provides “tantalizing insights”, suggesting its evolutionary ancestors such as the dinosaurs may also have been capable of self-reproduction. Also known as facultative parthenogenesis, virgin birth has been documented in species of birds, fish, lizards, and snakes, but never before in crocodiles. It is the process by which an egg develops into an embryo without fertilization by sperm.

The American crocodile (Crocodylus acutus) was taken into captivity in 2002 when she was two years old and placed in an enclosure in Costa Rica. She remained there alone for the next 16 years.
In January 2018, zookeepers discovered a clutch of 14 eggs in the enclosure. These eggs did not hatch but one contained a fully formed foetus.
Genetic analysis of the tissues from the foetus’s heart and from the mother’s shed skin revealed a 99.9% match – confirming the offspring had no father.
Facultative parthenogenesis is rare but is thought to occur when a species faces challenging or unfavourable conditions, such as environmental stress or lack of mates.

https://www.theguardian.com/environment/2023/jun/07/scientists-record-first-known-virgin-birth-in-female-crocodile-in-costa-rica

[color=#000000][/color]

Tu quoque

Highestpromoton:
Tu quoque

You are clearly trying to be ridiculous!