After framing Sirius Black for the crimes of betraying James and Lily Potter and murdering twelve muggles, Pettigrew went into hiding in his Animagus form, and disguised himself as a rat named Scabbers. He came into the possession of Percy Weasley, who eventually handed him down to his younger brother Ron.
Scabbers was Ron Weasley's pet rat. Passed down throughout the family, by the time he came to Ron, Scabbers was living up to his name with patchy fur and a distinct preference for sleeping. Although Scabbers was a loyal companion to Ron, the rat wasn't all that he seemed and was in fact hiding a terrible secret.
Peter 'Scabbers' 'Wormtail' Pettigrew is Ron Weasley's pet rat. He is an old, rather useless rat and Ron pretends to hate him, but he is secretly very attached to the rat. Scabbers used to belong to Ron's older brother, Percy.
Scabbers was the pet of Ron Weasley in the first three instalments of the series. He originally belonged to Ron's brother, Percy, but when Percy was given an owl as a reward for becoming a prefect, Scabbers was handed down to Ron.
What If Harry Never Called The Knight Bus? | Harry Potter Film Theory
How did Sirius Black know Peter Pettigrew was a rat?
In 1993, Sirius Black escaped from Azkaban after seeing a picture of Pettigrew's rat form in a Daily Prophet article about the Weasley family's trip to Egypt.
After Scabbers, Ron's old pet rat, disappeared (having been found out to be Peter Pettigrew), Sirius Black, who felt partly responsible for Ron's loss of a pet, sent him Pigwidgeon (nicknamed "Pig").
Pettigrew hesitated for a few seconds, something his enchanted silver hand interpreted as weakness. This brief moment of mercy caused his silver hand to turn against him, ultimately strangling him to death.
When Draco began his 2nd year at Hogwarts his dad sent him a pet niffler. The Niffler's main job was to find hinder treasures around the school, so Draco named him Snitch, also because the golden snitch. Snitch stole everything from Hermiones time turner, to Mrs Umbridge's cat teacup.
What is Luna Lovegood's pet? We never saw Luna with a familiar, or bound animal companion, even though one was allowed at enrollment. Hogwarts' acceptance letter limited such familiars to a cat, toad, owl, or rat, so Luna would have been limited to bringing one of these four, had she brought one.
Scabbers was technically a hand me down from his older brother so Ron was stuck with him. That being said, the fact nobody complained that it's a breach of the rules strongly says nobody honestly cares to be that much of a stickler towards it.
Remus fought at the Battle of Hogwarts on 2 May 1998, during which his wife was murdered by Bellatrix Lestrange. Remus was also murdered by Death Eater Antonin Dolohov, during the first half of the same battle. His death was possibly avenged by Filius Flitwick.
In the film, Bellatrix hit Sirius with the Killing Curse, Avada Kedavra, killing him before he passes through the Veil. In the book, the curse that hits Sirius is not identified (although it is rumoured to be Stupefy because of the red light), and him being knocked through the Veil is what causes his death.
It's my guess that Percy found him when playing in the orchard. He probably felt sorry for the rat, which would have been wounded (the missing finger/toe) and starving. He probably took it home to feed and fix up. He likely kept it a secret from his parents, but may have sought help from either Bill or Charlie.
Ron has pet rat named Scabbers. In the book Harry Potter and the Prisoner of Azkaban, Scabbers transformed from a rat to a human named Peter Pettigrew. Sirius Black replaced Ron's loss of Scabbers with an OWL about the size of a tennis ball. Ginny named the OWL Pigwidgeon, which Ron thought the name was stupid.
Arnold - A small, purple pygmy puff, Arnold is the beloved pet of Ginny Weasley. She buys Arnold from Weasleys' Wizard Wheezes and he is first introduced in Harry Potter and the Half-Blood Prince.
In the film adaptations, Fred and George are played by real-life twins James and Oliver Phelps. Unlike the characters in the novels, the Phelps twins are quite tall and lanky. The actors are also not natural redheads and had to have their hair dyed for the films.
Remus John Lupin was an only son of Lyall and Hope Lupin (née Howell). At the age of 4, he was bitten by the foul werewolf Fenrir Greyback when his father-Lyall Lupin- insulted all werewolves. Fenrir tried to kill him but Remus got saved by his father. However he became a fully fledged werewolf.
Under the influence of her father, Dolores grew up despising her mother and brother for their lack of magical abilities. She was sorted into Slytherin House at Hogwarts School of Witchcraft and Wizardry and hated her time at the school due to never being given any positions of power.
Fred was killed in an explosion possibly caused by Augustus Rookwood. One of the last things Fred heard before dying was Percy joking about resigning from the Ministry. Percy wouldn't leave Fred's side until Harry and Ron helped him move the body to somewhere safer, coincidentally behind a suit of armor.
Scabbers was actually, as we know, Peter Pettigrew, an unregistered animagus hiding out as the Weasley's pet rat. No matter how hard he focussed his intention on turning the rat yellow, or even if he'd said the words rattus colovaria (erm, we did our best) the spell would never have worked because the rat wasn't a rat.
Sunshine, daisies, butter mellow, turn this stupid, fat rat yellow was the incantation of a most likely nonsensical and non-existent spell fabricated by George Weasley that could supposedly change Ron Weasley's pet rat Scabbers's fur colour to yellow, but did not have such effect.
If you read the books, then you'll recall no one knew Scabbers was Pettigrew EXCEPT Sirius Black and later Remus Lupin. Why? Because they were the only ones who knew Peter was an unregistered Animagus whose form was a rat.
