[Peter B]

This morning I opened an egg that had to hatch 2 weeks ago. Inside i found a twin Strophurus taenicauda attached to eachother with their bellies

[adamkwas]

This is very interesting! Were the parents unrelated?

[Peter B]

The parents are from different breeders. Female comes from Czechia, male from Germany. But like with all rarely or not imported geckos: "are they unrelated?" is a very good question. I suppose there are very few truly different bloodlines of taenicauda in captivity.

[Yoshi'smom]

Sad but neat image....

[LarryLockard]

Was it the only egg from the clutch or was there another egg that hatched normally?

[Peter B]

The other egg from the same clutch also contained a fully grown normal dead animal. I think the substrate was too wet at the end of incubation. I have 8 more eggs. I'll keep them a little drier.

[LarryLockard]

That could be a reason for the other dead neonate, I've lost several to that as well. As far as the conjoined twin, I don't think you have anything to worry about the genetic diversity of the parents. That's rare in any animal species, just an anomaly that really has no explanation as to why it occurs. Good luck though with the other eggs. And thank you for sharing the pics with us.