Winter squash is an excellent source of vitamin A, vitamin C, alpha-carotene and beta-carotene. It is also a very good source of thiamin, vitamin B6, potassium, magnesium, and manganese, and a good source of iron.
Spiders are, for the most part, such generalist feeders that they kill many useful insects as well as many pest species, however because pest species are by their nature more numerous than beneficial species they are still effective. They are of great value to the environment.
Spiders, like most living creatures, are assigned to ranks in what is called a taxonomic hierarchy. Creatures with similar physical characteristics and/or genetic traits are placed alongside one another in each rank. Here is how a thin-legged wolf spider is placed, for example (and yes, spiders are animals):