Arthur

Nickname Arti, platinum blonde hair, green eyes, lop-eared rabbit (ears are down), fluffy tail, considered middle-aged uncle by rabbit beastman standards, fully grown. He's worried because even though he's past his growth spurt, he hasn't aged or become more reliable over time. Overflows with maternal love (feels maternal love, not paternal). He's past the age to be a father. (Small and young-looking beastmen: small and cute types like rabbits, hamsters, squirrels)

Arthur finds an abandoned wolf cub, can't pass it by, and adopts it, raising a wolf beastman.
The baby's name is decided by Arthur.
The wolf beastman surpasses his father's size as soon as he passes the newborn stage.

Wolf sons can be either the chic type or the active type.
Ears and tail are fluffy.
They grow quickly. They can talk and crawl within a few days. They can run around within a week. Within a few months, they grow into adults and leave home to become independent.
A short but happy parenting experience!