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Two eagle rays gave birth without encountering any males in 2 years


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Two eagle rays have surprised New Zealand aquarists and bemused scientists by giving birth without any males in their tank.

Nibble and Spot, both female and housed in the walk-through tunnel display at the SEA Life Kelly Tarlton’s Aquarium in Auckland, had pups on New Year’s Eve despite not having been near a male in two years.

Andrew Christie, the curator of the aquarium, believed the most likely explanation is that the rays had stored sperm from their last encounter.

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[...]

But in the case of the surprise eagle rays at Kelly Tarlton’s, Dutilloy believed the more likely explanation was parthenogenesis : a natural process of asexual reproduction, where an egg develops into an embryo without being fertilised. Compared to sharks, Dutilloy said sperm storage was relatively uncommon in rays, while parthenogenesis had been documented in spotted eagle rays – a close relative of Nibble and Spot’s species.

 

https://www.theguardian.com/world/2021/jan/22/new-zealand-eagle-rays-astonish-aquarium-with-mystery-births

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3 minutes ago, Esteban said:

Jesus is an eagle ray :pray:

God right now: “****, I pressed the wrong button :omg:

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Esteban
4 minutes ago, uo111 said:

God right now: “****, I pressed the wrong button :omg:

Imagine in is this world in loss of values and spirituality if millions of people make pilgrimage to see a damn fish :ladyhaha:
It will be as absurd as the world is, and I'm living for this! 

Praised be the ray! (of light) :tony:

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TasteLikeWhiskey

For those that have shown interest - Have a look at this:

It is literally one ancient, giant organism. Sometimes the line between reproduction and self-replication/cloning isn't so easily discernable. 

https://en.wikipedia.org/wiki/Pando_(tree)

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@FfFfFfFF @CubbyGaga @TSUNAMI  @Sneaky Oliver

I would never die for my beliefs because I might be wrong
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TasteLikeWhiskey
32 minutes ago, Esteban said:

Jesus is an eagle ray :pray:

The Virgin MaRAY is real :vegas:

I would never die for my beliefs because I might be wrong
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Tinnitus15
48 minutes ago, CubbyGaga said:

“Egg develops into an embryo without being fertilized”

wHAT 

how is that possible 

It is...in bees and other insect there’s a fertilisation called parthenogenesis which is know 

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They don't know if they hadn't encountered a male, those eagle rays could have received a "U up?" text in the middle of the night and nobody would have been the wiser :yennefer:

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