Reporting with multiple datasets together

Hi, If i have 3 different databases used as 3 different datasets in a report how can ihave them reported mixed together and sorted by animal's name (alphabetically) with different columns/formats for each dataset. Like the example below there is a different format for each dataset but they are sorted together by nameDatabase 1 = dogsDatabase 2 = catsDatabase 3 = lizardsANIMALS Cat Name Clawed Ally Yes Lizard Name Tail Location Diego Yes TXCat Name Clawed Fluffy No Dog Name Owner Breed Rover Max Boxer