Could a double Yolker egg hatch?

[Potatofluffycheeksforever]

I have some eggs in the incubator and I’m pretty sure I have some double Yorkers in there. Would they hatch?

 

[nuthatched]

No, not likely. If they make to 3 weeks, which is very slim, usually only one hatches. It may not live long after hatch. I'm sorry.

 

[SilverBirds]

Very unlikely. It is rare for both babies to make it past 2 weeks of incubation, rarer for them to both be alive for lockdown, and even rarer for both to hatch alive. There just isn't enough room in one egg for both babies to grow properly. Typically either both embryos die, or only one lives. If one were to make it to hatch, it'd most likely need assistance in hatching and it may have some developmental issues.