Male and female colour Williams' Dwarf Gecko
Adult males are electric blue with a black throat pattern; females and juveniles are bronze, green or gold. The difference is sex, not lineage.
Why it happens
- Where it comes from
- This is not caused by a gene. It happens during the animal's own development, before it hatches.
- What that means for breeding
- It cannot be bred for, no pairing makes it more likely, and it does not pass to the offspring.
Offspring odds
No numbers for this one.
Male and female colour is not inherited — it arises during development rather than from a gene, so it cannot be bred for and no pairing makes it more likely.
Worth knowing. The blue this species is named for appears on adult males only. Females and young animals are bronze or green, so clutchmates can look like different species and an animal sold as a "green morph" is a female. Nothing about the colour is bred for or inherited as a variety.
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.