our manifesto

A liveable world is a matter of choice

The climate and biodiversity crisis rages on, so far however, the youngsters have hardly been heard and that is what we worry about. With the manifesto 'Time for biodiversity' (only in Dutch) we want to draw attention from politicians to the liveability of our world and the future of all the following generations.

Read the manifesto


Biodiversity & us
museum tour

We live in the age of man. Our population has exploded. You and 8 billion fellow humans are asking a lot of the earth and all its life forms. In the new museum tour you will discover how vulnerable biodiversity is and also how resilient. The interactive tour can be found in the Naturalis museum app called 'Biodiversity & Us'.

Download the Naturalis museum app

Schildpad in plastic soep

nature in your area

Get to know the wildlife, plants and mushrooms around you better with the ObsIdentify app. ObsIdentify recognizes a great diversity of wild flora and fauna based on photos, names them, and provides facts about these species. With your observations you help to improve the automated species recognition and you contribute to knowledge about nature.

Discover nature

Ontdekken met je telefoon

Get active

There's a lot we can achieve if we all pitch in together. Here are five tips for things to do at home.

Help promote biodiversity

Be amazed: Take a good look at the wonders all around you. The more you know about nature, the more you will learn to appreciate it. So get out there, and discover the different kinds of life that can be found everywhere!
Bring a bag: Take your own bag to the supermarket, and be sure to throw any old, worn-out plastic bags into the recycling bin. Littered bags can end up in the ocean, where tiny animals gobble up tiny pieces of plastic. Eventually they end up inside fish.
Meat-free Mondays: Most animals bred for consumption are fed on soy products. To meet the growing need for soy, many tropical regions are being destroyed – magnificent forests that are essential for biodiversity.
Plant flowers: Plant some lavender or marjoram in your garden or on your balcony, and watch the biodiversity thrive! The flowers on these herbs will attract many different species of butterfly and other insects.
Insect hotels: They are becoming increasingly popular in cities: hotels for insects, where species such as ladybugs or butterflies can safely spend the winter. If you have the space, why not put one in your own garden?

Maak grijs groener


Like you and I, bees differ in the food they eat. It is important that there is sufficient and diverse food in the form of nectar and pollen for different bees. You can help with this by making a flowering arch: a composition of different wild plants, with different flowering periods throughout the year, to provide the different bee species with food. You can use the bloom arches app for this.

Make a flowering arch (Dutch)

Bij met bloem
Bij in bloem

A clear

To understand quickly, just listen and be amazed. Our researchers are delighted to share their vision of biodiversity with you. Hear their stories and delve into their knowledge.

The tower of life
Kwallen in de oceaan

about everything alive

Looking for answers to all your ‘how’ and ‘why’ questions?
Then you’re in the right place. Biodiversity explained in facts, figures and research.

Biodiversity Helpdesk
Ask your question

The Biodiversity Helpdesk is the place where everyone can get a scientifically substantiated answer to questions about biodiversity. Go to the Biodiversity Helpdesk and ask your question! Only available in Dutch.

Biodiversity Helpdesk

on biodiversity

The latest news about biodiversity, but with just a little more depth.

Follow our stories

The holotype of a cicada species
August 24th, 2022

True bugs in the picture

This is it: Pseudaufidus trifasciatus, a cicada species described in 1957 by entomologist and curator H. C. Blöte from Leiden. The cicada depicted above is not just any specimen of that species, but it is the so-called holotype: The specimen used when the…
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Michiel Hooykaas
June 27th, 2022

The day of the PhD defense: Michiel Hooykaas

On 30 June 2022 at 10.00 AM Michiel Hooykaas will defend his PhD thesis at Leiden University in true style. Under his suit, he will be wearing a shirt with a bird print that alludes to his field of research and the term that he coined himself: species…
Read more

National research

With our 120 scientists, every day we work on biodiversity research. We use this knowledge for nature conservation and building a sustainable future.