MWC KIDS · SCIENCE ZONE

Science superheroes don’t
need animal testing

A fun, friendly guide to how modern science tests medicines using human science — so animals
don’t have to be hurt. Ready to become a science detective?

THE BIG IDEA

What is MWC all about?

Medicine Without Cruelty helps scientists invent kinder, cleverer ways to make medicines
— using human science instead of testing on animals. Here is why that is brilliant.

Kinder science

Kinder science

Scientists can grow tiny human organs and use smart computers, so animals like dogs, rabbits and mice do not have to be hurt.

Cleverer results

Cleverer results

Animals are not the same as us. About 95% of medicines that seem to work in animals do not work in people. Human science is far more accurate.

Better for everyone

Better for everyone

We do not have to choose between helping people or protecting animals. Modern science can do both at the same time.

THE SUPERHERO SQUAD

Meet the science superheroes

These are the real technologies replacing animal tests. Each one has a special
power!

Mini-Organs

Mini-Organs

Called organoids — tiny human organs grown from human cells. They act just like a real brain, liver or heart!

Power: grows real human parts

Organ-on-a-Chips

Organ-on-a-Chip

A gadget the size of a USB stick with living human cells inside and tiny channels like blood vessels.

Power: a body on a chip

3D Human Tissues

Lab-grown human skin and eyes. They are already used all around the world to replace rabbit tests!

Power: used worldwide

AI Brainboxs

AI Brainbox

A clever computer called RASAR learned from 10,000+ chemicals. It spots danger 89% of the time!

Power: super-fast thinking

DID YOU KNOW?

Wow-factor science facts

Real numbers from scientists — they show why human-based methods are the
future.

0
of medicines that seem safe in animals fail when tested in people.
0
of harmful medicines were correctly spotted by a human Liver-on-a-Chip.
0
of cancer medicines that work in animals do not work in humans.
\
accuracy from AI, versus only 69% from old animal tests.

MYTH BUSTERS

Myth or fact?

Some people believe things about animal testing that are not true. Here is how to
bust the myths!

MYTH

“There are no alternatives to animal testing.”

FACT

There are lots! Mini-organs, organ chips, 3D tissues and clever computers all do the job.

MYTH

“We must choose: save people OR protect animals.”

FACT

We do not have to choose! Human-based science helps people and protects animals.

MYTH

“We need animals to find a cure for cancer.”

FACT

Scientists grow tiny tumours (organoids) from real patients to test medicines directly.

MYTH

“Animals are basically the same as humans.”

FACT

We are similar but not the same. Chocolate is a treat for us — but poisonous to dogs!

MYTH

“The law says every medicine must be tested on animals.”

FACT

In the UK there is no law that says that. Scientists are allowed to use kinder methods.

MYTH

“Only a few animals are used to make one medicine.”

FACT

Making one medicine can use hundreds or thousands of animals — that is why kinder science matters.

AMAZING WINS

Science is already changing the world

These real breakthroughs show that human-based methods are replacing animal
testing right now.

3D skin & eye models
AROUND THE WORLD

3D skin & eye models

Lab-grown human skin and eye models are already accepted worldwide to replace rabbit tests for chemicals and cosmetics.

Spotting harmful medicines
LIVER-ON-A-CHIP

Spotting harmful medicines

A human Liver-on-a-Chip correctly found 87% of medicines that damage the liver — including ones animals missed.

2024

A world first for cancer

The FDA accepted the first-ever cancer medicine tested with human organoids instead of animals — now in human trials!

FOR TEACHERS & GROWN-UPS

Bring MWC Kids into your classroom

Free, classroom-ready fact sheets written in plain, age-appropriate language —
download and explore together.

Myth vs Fact fact sheet

Myth vs Fact fact sheet

The most common myths about animal testing, busted with clear facts and 2024 statistics. Great for classroom discussion.

Myth vs Fact fact sheet

Modern science fact sheet

How human-based methods are replacing failed animal tests — a simple table of diseases, solutions and real results.

Would your school like a young campaigner talk?

We can arrange a talk or online Q&A for your class, plus free SUN (Stop & Use Non-animal methods)
courses — ask your teacher or parent to get in touch.

hello@medicinewithoutcruelty.com