What other animals are squirrels most closely related to?
Rodents (rats / mice)? Rabbits? Guinnea pigs? Hamsters? Chipmunks? Chinchillas?
I'm asking in terms of GI physiology and food/diet and commercially available small-animal feed.
Many of these animals are coprophagic (they eat their own feces) which is also known as "hindgut fermenters". But I can find nothing in the internet in terms of authoritatively explaining if squirrels are also coprophagic.
Do wild squirrels routinely eat their own "first-pass" feces like rabbits and hamsters do?