Introducing Two savannahs

[justinO]

I just introduced a savannah that i believe to be female to my male... now this new sav is trying to mount my male. Is this a common occurance like it is with ackies, or do i have another male sav on my hands. they aren't aggressive, just the "female" is constantly trying to mount the boy.. normal, backwards, sideways... is this a domination thing, or what?

EDIT: The "female"s bulges are significantly smaller then my boys.

I have Ravi's book somewhere, but I can't seem to find it now that I need it again. if anybody happens to know of a link to an image for comparison?

thanks,

Justin