[tclipse]

The eggs in question are connected inside of one egg sac. Is this where two-headed/siamese tadpoles come from, or is there a chance they will split? Identical twins maybe? (I'm guessing not...)

 

[Pumilo]

I would imagine there may be different ways for it to start, but my Zaparos from years ago, used to throw a 2 headed tadpole every few batches. They looked like a normal egg to the naked eye until they began developing.

 

[poison beauties]

Very interesting, I would bet if they dont split it will be more likely conjoint twins over two headed. I have no clue but would love to see how it develops

 

[james67]

by the look of the egg, i would guess a dizygotic twin egg

james

 

[dj98ram]

I think this should answer your question. Both of the eggs in question morphed out with their own distinct patterns, not identical.

http://www.dendroboard.com/forum/breeding-eggs-tadpoles/45125-fraternal-tadpoles.html

 

[botanyboy03]

After I got back to the apartment after reading this thread last weekend, I noticed this in one of my clutches of azureus I'd pulled last Friday.

 

[Pumilo]

Anybody ever seen a three headed tadpole? My Zapps threw one, once. It only lived about a week. That would have been too cool if it had morphed out into a three headed Zaparo! Of course, then there would be the concern of getting their tongues all tangled together when hunting the same fly!

 

[epiphytes etc.]

X-Frogs!

 

[leuc11]

Ive had it when the eggs are conjoined but normaly one of the 2 dies and it all molds over

 

[tclipse]

Ive had it when the eggs are conjoined but normaly one of the 2 dies and it all molds over

This is what ended up happening, they both molded over and the others hatched out. I'll update if another clutch like this is laid.

 

[Pumilo]

Too bad Teddy, I want to see somebody morph out a two headed frog someday. If you pull it off, you have to name him Zaphod Beeblebrox!

 

[Ed]

Anybody ever seen a three headed tadpole? My Zapps threw one, once. It only lived about a week. That would have been too cool if it had morphed out into a three headed Zaparo! Of course, then there would be the concern of getting their tongues all tangled together when hunting the same fly!

You can see an artist's rendition of a three headed toad here

Ed

 

[Manuran]

I've had very similar eggs show up from time to time. For me, what looked to be 2 joined eggs turned out to be 2 eggs/embryos separated by a very thin membrane. The membrane became more visible as the eggs developed.

 

[james67]

exactly. a 2 headed tadpole would start life as ONE egg which would split incompletely. of course this would happen early on in the egg's development, but i would imagine it would be rather apparent to the naked eye upon close examination. what you and the OP have are the frog equivalent of fraternal twins, where 2 separate eggs are produced together.

james