Matching corresponding records from two or more tables

Try this

declare @intake table (IntakeID int, Dateintake datetime, AnimalID varchar(10)) 

insert into @intake
select 1,'2009-02-05','001'
union select 2,'2009-06-19','002'
union select 3,'2009-07-06','003'
union select 4,'2009-07-12','004'
union select 5,'2009-07-15','005'
union select 6,'2009-08-04','003'
union select 7,'2009-08-04','004'
union select 8,'2009-08-14','003'
union select 9,'2009-12-12','004'

declare @License table 
     (LicenseID varchar(10), AnimalID varchar(10), DatePurchased datetime)

insert into @License
select '2009-01','004','2009-08-09'
union select '2009-02','003','2009-08-12'
union select '2009-03','004','2009-12-16'


select
    uniqueAnimals.AnimalID,
    isnull(License.LicenseID, ' - ') as LicenseID,
    isnull(replace(convert(varchar, License.DatePurchased, 111),'/','-'),' - ') as DatePurchased
from
    (
    select distinct AnimalID from @intake
    ) uniqueAnimals
left join
    @License License on License.AnimalID = uniqueAnimals.AnimalID

this gives

AnimalID   LicenseID  DatePurchased
---------- ---------- -------------
001         -          - 
002         -          - 
003        2009-02    2009-08-12
004        2009-01    2009-08-09
004        2009-03    2009-12-16
005         -          -

Basically what this is doing is joining the unique list of AnimalIDs from the intake table, to the license table using a left join to get the null values where no license exists. The isnull, replace and convert bits are just to make the output look as you specified, but if that's not needed then adjust to suit.