Not the OP, and I disagree with their assertion that chickens and bugs are of similar intelligence, but there ARE some very intelligent spiders. (which I know aren't technically "bugs")

>Besides having the capacity to make plans, act on the basis of object permanence, represent specific goals and solve novel problems, Portia often has to confront more than one other spider at the same time. [0]

>Our findings suggest that Portia represents 1 and 2 as discrete number categories, but categorizes 3 or more as a single category that we call ‘many’. [1]

We seem to naturally have a strong tendency to disregard the intelligence and emotional lives of animals. (which if you think about it, was probably strongly selected for at some point in the past)

[0] https://royalsociety.org.nz/news/jumping-spiders-can-count-1...

[1] https://royalsocietypublishing.org/doi/full/10.1098/rsfs.201...