From my experience, when we give a range we usually go from lowest to highest.
EG, from 1 to 10
I was reading about mosquitoes and saw this
The average mosquito bite drains 0.01 to 0.001 milliliters of blood.
Sorry if this is off topic, maybe English stack exchange site is better for this but... Is this normal? Are decimals (as a range) usually referred to highest to lowest?
My own googling shows nothing around this
What was written is possibly unintentional. Though I don't think I would call it wrong, it's far more common to start a range with a lower number, regardless of whether the numbers are greater than $1$. But there are some occasions when lower implies "more," like with negative temperatures, which might be listed as a range in the opposite order. In this case though I would've written $0.001$ to $0.01$.