My generation ship aliens: Nocturnal and Diurnal plausible in same species?

Diurnal vs Nocturnal

These aliens have genes that influence whether the alien will be diurnal or nocturnal. Hatching time also influences this.

Genetics:

DD - Diurnal

NN - Nocturnal

DN or ND - Unknown until hatching time

Hatching time:

Hatch during daytime - Diurnal

Hatch during nighttime - Nocturnal

Hatch during twilight - Unknown

If a baby alien has both the diurnal and nocturnal alleles and hatches during either twilight(morning twilight also known as the blue hour or evening twilight with all those rainbow colors(except green but I do see purple and pink in an evening twilight. In fact especially in the summer, I can see at just the right moment and in just the right place sunlight splitting up into separate beams of red and yellow light as it goes through the windows of my house)) then it is completely unknown if the alien will be diurnal or nocturnal. Same goes for if hatching time and genetics are opposite. If however the hatching time is in twilight but the alien has just diurnal or just nocturnal alleles or if the alien has both alleles but hatches in either the day or the night it is determined by the one that doesn't give an unknown result.

Note: Ignore those Watches and just look at the regions of daytime, nighttime, and twilight.

Is it plausible to have nocturnal and diurnal creatures of the same species?

posted over 7 years ago

Caters‭

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