Blue phase Green Tree Frog
How far toward blue an animal goes. This is largely the frog's own state — colour shifts with temperature, humidity, light and mood — and what is heritable is the range an animal can reach, not a fixed colour.
How it is produced
- Where it comes from
- This is not a single gene. It is produced by choosing which animals to breed, over generations.
- What that means for breeding
- No offspring percentage can be given for it. Breeders judge it by looking at the parents.
Offspring odds
No numbers for this one.
Blue phase is produced by selective breeding over generations, not by a single gene, so no offspring percentage can be given for it. Breeders judge it by looking at the parents.
Worth knowing. A White's tree frog photographed at its bluest will not look like that all day. Animals are regularly sold as "blue" on the strength of one photograph. What a breeder can select for is how far toward blue a frog goes, not that it stays there.
What this rests on
Established by breeders through repeated crosses and recorded in community documentation, not by published genetics. That is how almost all morph inheritance is known — and it is worth saying rather than presenting it as laboratory fact.