- Picture Books
- Ages 3–6
- Comedy

Oi Duck-billed Platypus!
Book 5 of 8 in Oi Frog and FriendsView the full series
A very funny Oi sequel built around the impossible rhyming problem of the duck-billed platypus. It keeps the phonics-friendly silliness while introducing trickier vocabulary and a satisfying exception-to-the-rule joke.
- Best for3–6
- FormatPicture
- Length32 pp
- Read aloud~6 min
The vibe
What it’s like.
Style
- Rhyming
- Repetitive
- Comedic
- Conversational
Tone
- Funny
- Silly
- Warm
- Irreverent
Themes
Experience meters
What’s it about?
The story.
Frog, Cat and Dog are back with another rhyming seating challenge, but this time they meet an animal that causes real trouble for the rules: the duck-billed platypus. Cats can sit on mats, dogs can sit on logs, and plenty of animals have neat rhymes waiting for them. But what exactly is a platypus supposed to sit on? Oi Duck-billed Platypus! stretches the series' core joke into longer, sillier and more vocabulary-rich territory. Kes Gray's rhyming text encourages children to listen for sounds, anticipate patterns and delight in language going slightly wrong. Jim Field's bright animal illustrations make the increasingly absurd pairings feel theatrical and playful. This is a strong continuation for children who already love Oi Frog and want the rhyme game to get bigger and dafter.
Fit check
Right for your child?
Where it lands by age
- 1
- 3
- 5
- 7
- 9
- 11
- 13
- Best fit · 3–6
- Read aloud · 2–7
- Independent · 5–7
Prose load
Minimal
Visual support
Very high
Reluctant-reader friendly
Very
Read-aloud quality
Excellent
Works well for
- Reading aloud
- Bedtime
- Reading together
- Gift-buying
- Reluctant readers
Nothing in the book is likely to concern most parents. Safe to recommend without preview.
Bedtime suitability
4 / 5 · Bedtime-friendly
Sensitive-child
5 / 5 · Good fit
Graphic intensity
1 / 5 · None
Best for
- Rhyming read aloud
- Phonics play
- Preschool comedy
- Animal wordplay
- Tricky rhymes
Avoid if
- Dislikes silly rhyme
- Wants story depth
- Prefers quiet lyrical books
- Needs low repetition
Particularly good for children who are…
- Starting nursery or preschool
- Reluctant reader
- Struggling with reading
- Starting school
In the classroom
How it works in school.
A riotously funny rhyming series built on rhyme — superb for joining in, predicting rhymes and playing with words.
A book children love that happens to support school — never a stand-in for the texts a class is taught with. Reviewed for the classroom · June 2026.
Why it lands
Why they love it.
Why kids love it
The specific challenge is the impossible rhyme — what on earth does a duck-billed platypus sit on? A four-year-old gets to watch the rhyme system bend, snap, then bend back, with words long enough they have to say them carefully. The trickiest Oi, and one of the funniest.
- Talking to animals
- Breaking the rules safely
- Trickery and cleverness
- Being understood finally
Why parents love it
The Oi for a child who's mastered the earlier rhymes and is ready for the puzzle volume — long animal names, tricky sounds, satisfying resolutions. Builds genuine phonological awareness in a way that feels like comedy. The book that proves the formula can stretch.
- Shared humour
- Quick to read
- Bedtime appropriate
- Educational for adult too
In the series
Oi Frog and Friends.
8 books · open the series →
About the creators
About the creators.
If you liked this
Three ways out of this book.
Where to go next…
Escalation reads — a step up in scale, silliness, or stakes.
Where you’ll find it
On these reading lists.
Buy or borrow
Pick up a copy.
- Bookshop.org ↗
- Waterstones ↗
- Amazon UK ↗
- Hive ↗
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