No, we don't have a general dogs / canines thread analogous to the Cats & People thread. Otherwise, there are about as many threads about dogs as about cats.
Why might that be? ...
Perhaps interestingly, there are more threads about specific uses for - and different types of relationships with - dogs than cats. Examples include discussions about dogs' reactions to Fortean phenomena, sniffer dogs, tracker dogs, hunting dogs, etc. This may be a clue.
Consider this ... We have a thread on the co-evolution of humans and dogs, but there's no analogous thread for cats. This is probably another clue.
Humans and dogs have a history of partnerships and collaborations which helps explain the many different topics involving dogs and people. Cats, on the other hand, are basically just "there" - mysterious creatures who are aloof and seem to care not a whit about cooperating, much less collaborating, with humans. This implies there's basically only one general context for discussing cats.