Canon Community

I have been taking photos of pets and do ok for an amatuer but would appreciate any tips (I know clicker training helps a ton to get expression -- ha ha ) 

I have a Rebel T2i that came with EF S lenses - I want to buy a Canon 5d Mark II and am trying to find out if I can use the regular EF lenses used for the mark II on my old Rebel?  I know I can't use EF  S on the Mark II .I am trying to photograph bi...