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Cover of Oi Dinosaurs!
Picture · ages 3–6

Oi Dinosaurs!

Written by Kes Gray · Illustrated by Jim Field

Book 8 of 8 in Oi Frog and FriendsView the full series

Bestseller list
Top giftableAdults love it tooEndlessly rereadable

The newest mainline Oi story sends Frog, Cat and Dog into prehistoric rhyme territory. It is a very strong fit for dinosaur fans who also enjoy silly wordplay and joining in aloud.

  • Best for3–6
  • FormatPicture
  • Length32 pp
  • Read aloud~6 min
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The vibe

What it’s like.

Style

  • Rhyming
  • Repetitive
  • Comedic
  • Conversational

Tone

  • Funny
  • Silly
  • Warm
  • Irreverent
  • Exciting

Themes

On the pagerhyming words, dinosaurs, prehistoric animals, wordplay, phonological awareness, animal comedy, prehistoric frogs, mammoths

Experience meters

Energy4/ 5
Humour5/ 5
Scariness1/ 5
Peril1/ 5
Wonder3/ 5
Cosiness4/ 5
Emotional intensity1/ 5
Conceptual intensity1/ 5

What’s it about?

The story.

Frog, Cat and Dog are back, and this time the rhyming chaos has gone prehistoric. Oi Dinosaurs! brings the familiar Oi rule system to dinosaurs, mammoths and other ancient creatures, turning big names and big beasts into a fresh round of sound-play comedy. The appeal is immediate: children who already love the series get more of the pattern they know, while dinosaur fans get a subject that naturally invites roaring, pointing and joining in. Kes Gray's rhymes keep the book fast and playful, and Jim Field's illustrations make the prehistoric cast expressive rather than frightening. As with the best Oi books, the educational value is tucked inside the joke: children are listening for sounds, predicting patterns and enjoying language as something active and funny. A strong newer addition to the core sequence.

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
Low sensitivityNo content warnings

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
  • Dinosaur fans
  • Preschool comedy
  • Animal wordplay

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
  • Starting school
  • Interested in science
  • Struggling with reading

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.

Classroom role

  • Read aloud
  • Poetry and performance

Good for teaching

  • Prediction
  • Vocabulary

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 delight is dinosaurs finally getting the Oi treatment — diplodocuses on octopuses, T-rexes on stegosauruses, the rhyme machine cranking through prehistoric beasts. A four-year-old who loves dinosaurs gets a fresh Oi premise; one who loves Oi gets a fresh subject.

  • Talking to animals
  • Animal companions
  • Breaking the rules safely
  • Adventure and freedom

Why parents love it

The Oi for a child obsessed with dinosaurs — the same airtight rhyme structure with a brand-new cast of prehistoric beasts. Particularly good for the dinosaur-and-rhyme overlap, which is most three-to-five-year-olds at some point. Reliable late-series addition.

  • 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.

KG

Kes Gray

Writer · United Kingdom · b. 1960

Kes Gray is a British author born in 1960, best known for the bestselling Oi Frog! rhyming picture-book series (illustrated by Jim Field): Oi Frog!, Oi Dog!, Oi Cat!, Oi Duck-billed Platypus!, Oi Aardvark! and more. Each book runs on absurd-rhyme animal-on-X seating-chart logic, with deliberately silly word-play that lands well on read-aloud. Gray also wrote the long-running Daisy chapter-book series (Daisy and the Trouble with Zoos, …Life, …Maggots etc.), and Eat Your Peas. His voice is gleeful, child-aligned and quietly subversive, children typically love that the books treat absurd rule-fixation as a moral universe. A reliable read-aloud author for ages 3–7 (picture books) and 6–9 (Daisy).

More from Kes Gray
JF

Jim Field

Illustrator · United Kingdom · b. 1980

Jim Field is a British illustrator born in 1980, who lives and works in Paris and has become one of the most in-demand picture-book illustrators in UK children's publishing. He is best known for his collaborations with Kes Gray on the Oi Frog! series and with Rachel Bright on The Lion Inside, The Squirrel Who Squabbled and others. Field's style is energetic, character-driven and graphic, with clean compositions and very expressive animals, instantly recognisable on a bookshop table. He works almost exclusively as illustrator rather than writer. A reliable visual signal of fun, well-paced picture books for ages 3–7.

More from Jim Field

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Lateral matches. Same shelf, different texture.

Come into this from…

Easier or preparing reads — perfect lead-ins.

Where to go next…

Escalation reads — a step up in scale, silliness, or stakes.

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Where you’ll find it

On these reading lists.

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Pick up a copy.

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Last reviewed · May 2026Suggest a correctionHow we recommend

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