Jump to ratings and reviews
Rate this book

Frog: A Story of Life on Earth

Rate this book
*Shortlisted for the UKLA 2026 Book Awards*
*Shortlisted for the 2026 Peters Children's Book of the Year Award*
*Shortlisted for the 2025 Children's Wrainwright Prize for Non-Fiction*

If frogs come from eggs,
and eggs come from frogs,
where did the first frog come from?


This is the incredible story of how frogs came to be. To find out, we go all the way back to the very beginning. Before frogs, dinosaurs, planet Earth – before even the stars existed . . . back 13.7 billion years to the moment just before the universe began. And from there, through Isabel Thomas's beautifully lyrical text and Daniel Egnéus's breathtaking illustrations, we are transported through time to the evolution of the very first frogs.
The story of frog is an epic; an adventure in space and time. It's a story still being told, in every garden, every pond and every corner of our extraordinary planet.

51 pages, Kindle Edition

Published May 15, 2025

35 people want to read

About the author

Isabel Thomas

361 books62 followers

Ratings & Reviews

What do you think?
Rate this book

Friends & Following

Create a free account to discover what your friends think of this book!

Community Reviews

5 stars
25 (43%)
4 stars
25 (43%)
3 stars
6 (10%)
2 stars
1 (1%)
1 star
0 (0%)
Displaying 1 - 14 of 14 reviews
Profile Image for Stephen the Bookworm.
955 reviews166 followers
April 3, 2025
Frog by Isabel Thomas is a curiosity of a book in that first impressions are that it is going to be about the life of a frog but this read takes young learners and readers in the direction of an amazing journey through the evolution of a species.

Starting at the "Big Bang" and travelling though millennia to the formation of the planet ,the first living cells and the gradual evolution of water based creatures leading to amphibians , the book explores how life began leading to the Frog as well as the universe itself.

Daniel Egnéus' illustrations are beautiful and Isabel Thomas' prose is pitch perfect for enquiring minds- although some vocabulary might need a little explanation.

This is a great book for young naturalists, classroom learning exploring frogs or young readers who enjoy learning new facts.

A beautiful information book that will open young minds and one that could be a useful classroom resource

Readers Age 5-8 Ks1 and lower Ks2
9,486 reviews135 followers
May 14, 2025
A book that's only mildly about a frog. It asks us a question – which came first, the frog or the spawn? – and then decides it has to go back to the very first instances of frogless anything, and the Big Bang. Slowly it builds up to life on Earth, and then how amphibians are the fathers of anything with four limbs on our world, proving us all – humans alike – to be wondrous stardust, and then stops without actually answering the question. So what do you want most from this – a history of the universe and evolution combined, or something that talks to us about frogs, as the title suggests? It's a real chicken and egg, that… I wasn't over- or underwhelmed by the art, so this is probably three and a half stars.
Profile Image for Donna Maguire.
5,723 reviews126 followers
January 31, 2026
I thought that this was a really interesting book for children and it gave us plenty of points to talk about after the book was finished too.

My daughter really enjoyed the book and she found it easy to read and understand.

My daughter does attend a Catholic School and they are taught Creationism (which I personally don't believe in) so it was good to read this one with her for the different perspectives as she hasn't been taught about evolution as yet (she is only in her early years of Primary School).

The layout for the book was great and the illustrations really made the book.

It is 4 stars from me for this one - highly recommended!
Profile Image for Rhi.
69 reviews6 followers
April 7, 2025
What a fascinating and thought provoking book for young minds!

A very accessible way of introducing bigger scientific concepts like the Big Bang and Evolution to our younger learners.

The illustrations are colourful and full of life. I love that even though they are catered to a younger audience, they don’t shy away from being scientific and giving children a possible first introduction into elements they will recognise later on in their learning career, such as atoms, cells, and microscopic organisms.

All round a wonderful book!
Profile Image for Amy.
85 reviews4 followers
May 26, 2025
4.5 🌟

Thank you to Netgalley and the publisher for an e-ARC. All opinions are my own.

Such a great, colourful and inquisitive book. I absolutely love the pictures and the colours used, my three year old was transfixed. This book is an accessible way to explore some scientific theories such as the bing bang and evolution. Some of the language I would say was perhaps a little tricky for the age group. I would say best suited to KS1 children. My three year old thoroughly enjoyed it.
Profile Image for Martha Meyer.
795 reviews17 followers
March 12, 2026
A gorgeous introduction to the history of life, going back to the Big Bang, all in an effort to answer a kid's question about frogs, after wading in a pond full of frog eggs. Short and easy to follow, with those fantastic illustrations! This book comes from a pair of European creators and it is the 3rd in a series. (Moth: An Evolution Story and Fox: a Circle of Life Story). "Not just a frog, but the story of the universe retold." Amazing.
946 reviews6 followers
March 3, 2026
Which came first, the mountain chicken (no, really, that's a frog species) or the eggs?
When I looked at the jacket, I recognized the author from writing Moth and Fox.
This is a gorgeously illustrated introduction to the Big Bang, the start of life on Earth, and evolution, told through the lens of 'frog'.
Profile Image for Bookishrealm.
3,380 reviews6,508 followers
April 10, 2026
Don't let the cover fool you! This book is more than just the story of frogs. It brilliantly utilizes the frog as the catalyst for the creation of life. It's told in a way that is easy to understand for younger readers and serves as a great conversation starter. Daniel Egneus did a wonderful job with the artwork. Definitely recommend this for all science readers and lover of frogs.
Profile Image for Caroline.
2,291 reviews27 followers
February 5, 2026
Really, really pretty illustrations with lots of saturated colors throughout. The content is interesting - using a frog to think about the process of life on earth. But man, that font was driving me crazy. The book design in general was so awkwardly laid out that it pulled me away from the book.
Profile Image for Diana.
1,651 reviews16 followers
July 4, 2025
This book gives you no spoilers with the cover because it is mostly a book about how to universe formed and not about frogs.
Profile Image for Shoshanna.
1,498 reviews2 followers
March 11, 2026
Beautifully illustrated picture books that starts with a question about frogs and takes us to a history of the universe, focusing in on the sun, earth, the origins of life, and ultimately frogs!
Displaying 1 - 14 of 14 reviews