i've had my pair of male degus for about 3 1/2 years now, they really are great - theyre not as keen on being handled as my shaws jirds are (or my rats were) but theyre much more interesting to watch. they do develop really close bonds too, and pay a lot more attention to each other than the jirds or rats do too. they'll spend hours grooming each other, although each of them will push their luck to see if they can get the other to do more of the grooming!! they do occasionally fall out, and have proper huffs with each other, involving a lot of tail shaking, and turning their backs on each other; but these never last long and usually involve peanuts or other treats
stagette, do you have any links to the research re the reclassifications? i'd understood them to be closer to guinea pigs than chin's but am always curious to find out more. i suppose a reclassification would still make sense as theres dispute about whether guinea pigs are rodents too
re the diet point, cant emphasise enough the problems that sugar causes, my g/f had a single degu before i got mine that developed diabetes and the associated problems (inc cateracts) that unfortunately caused it to die prematurely at about 2 years of age. A lot of pet shops still sell degus with a woeful lack of good info about their care. if you are going to offer sweet treats such as raisins etc then its worth making it very occasional. I feed mine on chinchilla mix without fruit pieces. theyre housed in a 3 storey ternziani cage, which seems to be plenty of room for a pair. I've seen aiviaries housing larger colonies, and would love the space to do this one day....
Unfortunately my pair suffer from maloclusions of their rear molars so its regular, expensive trips to the vets for me to trim them back to their correct length -a general anasthetic procedure so not cheap.