hi, Thanks for your job!

could you tell me which species does GO.db use? Since now we have human ,rat ,mouse ,and etc......

does different species have the all the same GO terms ? can I use GO.db for human, mouse or rat and why?

And if I want to use go terms for rat , what should I do?

best wishes, Young

# include your problematic code here with any corresponding output 
# please also include the results of running the following in an R session 

sessionInfo( )

GO contains the GO terms and their relationships, it doesn't contain the annotation to a particular specie. The terms are independent of the specie and all species uses the same terms.

To annotate a rat you should use the appropriate annotation library for your organism, it might be org.Rn.eg.db.
Please, next time explain what you searched and how it was not clear how to use the packages or the information.
This way we can improve documentation or explanations and it will be easier to answer your questions (and not redirect you to something you might have already read)