Tuxemon within a species may vary based on their genetics or environment. Variants could be purely mechanical, purely cosmetic or mechanical and cosmetic, and either be fixed from a monster's birth, fixed from some point after birth, or able to be changed.
- 1 Genetic
- 2 Sexual dimorphism
- 3 Congential
- 4 Environmental
- 5 Brief, cyclical or voluntary
- 6 Other
For example, a butterfly tuxemon could have different wings based on which route it's captured in.
Magmaturtle's default form is a fiery turtle, but a sea-dwelling subspecies would have a different Type and techniques.
Differences within a species based on the sex (see Wikipedia).
From birth, but not necessarily inherited - could include different colouration, sizes or features.
Colour variations exist for some tuxemon:
From birth and inherited, but not resulting from DNA (see Wikipedia)
Emerge at birth but do not reflect genetic variation, like different monsters in a species having different patterns of spots
Permanent changes based on environment
Memnomnom's masks take the form of a dead king's face. This could also belong to the tool use category if it turns out that they can change their masks.
Jemuar have different gems based on the rocks found where they were born.
Katacoon evolves based on which technique it knows.
Temporary changes based on environment
Like changing colour from eating berries of a particular colour.
Changing based on a cycle
Jeluna changes with the phases of the moon.
Brief, cyclical or voluntary
Like a skink losing its tail to distract a predator or a cuttlefish changing pigmentation; a tuxemon could change its colours to match its trainer, and if its trainer changed clothes it would change colouring. A tuxemon could have different abilities based on which status they had when they were caught.
Bewhich has a "sealed form":
Like a hermit crab getting different powers based on what shell they use as their home or a coconut crab getting more defence while it has a coconut shell, or a domesticated monster wearing clothes or getting a haircut (see Wikipedia)
Like a dragon becoming ultra-powerful for a period after touching a magical stone
Changing based on a phase or condition
Where the changes only last for the duration - like having different properties while pregnant