Seymour Asses
From Futurama Wiki
Seymour was Philip J. Fry's 20th-century dog. Fry found the hungry dog circa 1997 on the streets of New York, befriended him and named him "Seymour" after a pizza delivery prank, and eventually taught him to bark/sing Walking on Sunshine. Seymour was noted for having wet dog smell, even when he was dry. When Fry later fell into a cryogenics tube, where he remained for nearly 1000 years, Seymour lead members of Fry's family to the cryogenics laboratory but failed to convince them to examine the tube. They dragged Seymour away.
Seymour's fossilized remains were found by Fry in the 31st century at a museum exhibit of Panucci's Pizza. Professor Farnsworth had the technology to extract DNA from the remains and create a clone of Seymour, complete with memories, but Fry declined, reasoning that since the readings indicated Seymour had lived to the age of 15, 12 years after Fry was frozen, Seymour must have formed new memories and eventually forgotten Fry.
The last moments of the episode Jurassic Bark however indicate that Seymour on the contrary had waited outside Panucci's Pizza for Fry's return every day since he got frozen.The episode's ending thus made for a unusally tragic closing scene. Yet, in the events of the first DVD movie Bender's Big Score, a clone Fry created through the use of the paradox-free time travel machine decides to stay in the past for twelve more years until he eventually becomes Lars Fillmore through a failed assassination attempt by Bender – and returns to the future. In the due course until Bender's failed assassination attempt, during which Seymour becomes petrified in Dolomite, there are repeated displays of him together with Fry.
If you combine the sum events, Fry was both wrong and right about his statement in the "Jurassic Bark" episode. Seymour obviously lived to the age of 15 years and "formed new memories", however, those memory included Fry (or rather the clone who later became Lars Fillmore).
[edit] Behind the scenes
Seymour is voiced by Frank Welker. It is believed that Seymour is based on Argus, Odysseus's dog from the Iliad, who waited twenty years by a dung heap, confident that his master would return from war. Seymour's remains appear briefly at Fry's funeral in "The Sting", and can be seen on display in the crew's apartment in Bender's Big Score.
The song that is sung at the end of the "Jurassic Bark" episode is called "I Will Wait For You" from the 1964 french musical "Les Parapluies de Cherbourg" (The Umbrellas of Cherbourg) written by Michel Legrand.

