A probably Ephebian philosopher, who wrote and illustrated the scroll Bestiary which was memorised by the prophet Brutha for eventual re-copying at the Omnian library, but which otherwise was thought lost in the burning of the Library of Ephebe.
"Philo-" is the Greek prefix meaning "love of" whatever follows, e.g. philosophy: philo (love of) sophia (wisdom, learning).
Possibly below the belt, but the technical terms for the practice of sexual contact with animals are zoophilia (psychiatric/medical) and bestiality (legal). Quite apart from establishing a connection with the unfortunately named Bestiality Carter, this poses intriguing questions about Philo's underlying motivation for creating this scroll...