Based on your findings, which theory about alien thickness seems most valid or most accurate?

a.) alien thickness is mainly affected by sunlight. the thickness may be used as a way to shield out the sunlight.
b.) alien thickness is mainly affected by temperature. this may be because aliens become dehydrated (lose water) at higher temperatures and become thinner.
c.) alien thickness is mainly affected by temperature. the greater thickness at lower temperatures may be used as a way to stay warmer in colder weather.
d.) alien thickness seems to change at random. it does not see to be affected.