Y diwrnod y daeth Jac daeth Jac y gwningen i fyw gyda Rhys a Cadi oedd diwrnod mwyaf cyffrous ei fywyd. Cwningen fach frown a chlustiau hir, llipa oedd Jac. Roedd yn chwe mis oed, ac yn llawn egni. Roedd yn chwilfrydig ac wedi cael llond bol ar fyw yn y siop anifeiliaid anwes. Ymunwch a Jac wrth iddo ddechrau ei fywyd newydd. The day Jac the rabbit came to live with Rhys and Cadi was the most exciting day of his life. Jac was a small brown rabbit with long, floppy ears. He was six months old and full of energy. But Jac was also a curious rabbit, and had had enough of living in the pet shop. Join Jac as he begins his new life.