Lyric discussion by mralchemist 

Cover art for Venus And Serena lyrics by Super Furry Animals

It's funny, at the start of the inside leaf lyrics to this song, there are the lines:

"I was raised by wolves until the age of two, During that time, my best friends and closest confidants were my pet turtles, Venus and Serena"

explains the last lines of the song about the son being found outside. But i'd say it's about growing up too, about how scary and confusing things in the adult world are, and how his childhood innocence has gone("Father father father when i look to the past, i didn't realise that it wouldn't last").