Real world article
(written from a Production point of view)
(written from a Production point of view)
Referenced in the revised final draft script of the Star Trek: The Original Series first season episode "Balance of Terror", a terrier is a breed of dog.
In the aforementioned teleplay, a barrage of phaser strikes fired by the USS Enterprise were described as shaking a particular Romulan Bird-of-Prey "like a terrier," during the Neutral Zone Incursion of 2266.
Friday, a canine performer who portrayed Maura in TNG: "Aquiel", was a terrier mix.