First confirmed hatchings of two California condor chicks from unfertilized eggs
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First confirmed hatchings of two California condor chicks from unfertilized eggs
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Re: First confirmed hatchings of two California condor chicks from unfertilized eggs
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Re: First confirmed hatchings of two California condor chicks from unfertilized eggs
#3Condors. Condors are on the verge of extinction. If I was to create a flock of condors on this island, you wouldn't have anything to say.
Also:
> However, in a surprising twist, they found that neither bird was genetically related to a male—meaning both chicks were biologically fatherless; and accounted for the first two instances of asexual reproduction, or parthenogenesis, to be confirmed in the California condor species.
Life, uh, finds a way.
Re: First confirmed hatchings of two California condor chicks from unfertilized eggs
#4So this is essentially Condors cloning themselves.
Re: First confirmed hatchings of two California condor chicks from unfertilized eggs
#5Condors. Condors are on the verge of extinction. If I was to create a flock of condors on this island, you wouldn't have anything to say. Also: > However, in a surprising twist, they found that neither bird was genetically related to a male—meaning both chicks were biologically fatherless; and accounted for the first two instances of asexual reproduction, or parthenogenesis, to be confirmed in the California condor s…
Damn, you beat me to it. :)
Re: First confirmed hatchings of two California condor chicks from unfertilized eggs
#6So in birds, sex chromosome arrangement is a reverse of what we have in humans. Their males are ZZ and the female is ZW. Which is why only males appear from this parthenogenesis.
Re: First confirmed hatchings of two California condor chicks from unfertilized eggs
#7Quite the insult to the male condors. They were housed with the females, and but the females biologically opted for cloning themselves instead.
Re: First confirmed hatchings of two California condor chicks from unfertilized eggs
#8Do condors generally have one egg at a time or were there other eggs hatched at the same time with a male parent? Do they think the two bird's early deaths were related to their parthenogenesis, and did the 8 year old one parent any children? On that note, what was the gender of the unfertilized chicks?
Re: First confirmed hatchings of two California condor chicks from unfertilized eggs
#9So this is essentially Condors cloning themselves.
How does it work? I don't know how condors regulate their internal functions. As a human, I can control my muscles and my breathing, but I can't control, say, my digestion, my liver, my heart beat (except indirectly by either relaxing or doing stressful activities). How would a bird "flip the switch" and initiate asexual reproduction?
Re: First confirmed hatchings of two California condor chicks from unfertilized eggs
#10So this is essentially Condors cloning themselves.
How does it work? I don't know how condors regulate their internal functions. As a human, I can control my muscles and my breathing, but I can't control, say, my digestion, my liver, my heart beat (except indirectly by either relaxing or doing stressful activities). How would a bird "flip the switch" and initiate asexual reproduction?
How can anyone answer a question about the subjective experience of a bird? :)
If I had to guess, it could be a subconscious switch happening based on environmental and mood factors, similiar to how human pregnancies can miscarry in times of extreme stress.