We perform multidisciplinary research at molecular, cellular, and organismal levels of animal biology to increase fundamental understanding of health and disease.

Biosynthetic gene clusters (BGCs) for natural products are widespread in microbial genomes, and they are rapidly exchanged. This research assesses the factors that control the spread of BGCs and resistance genes in nature. This includes risk assessment for the spread of engineered DNA in nature.

Steering soil microbiomes for better crop quality: the holy grail to improve human health?

We investigate water quality and want to understand the effects of human interference on aquatic biodiversity.

A liveable planet. More biodiversity. And resources which are being managed wisely. At the CML, we want to make an impact with our research and education. On this website you can read what we do to achieve that.

Every year, the Leiden Institute of Physics (LION) organises the Science Day. The goal is to highlight the newest research at LION, to socialise, and to welcome first year master students and new PhD candidates to our institute.

A global perspective on the nature and evolution of nationalism, from the early modern era to the present.

Martijn Bezemer has been appointed as professor in “Ecology of plant-microbe-insect interactions” within the Faculty of Science at the Institute of Biology from the 1st of September 2016. His main research focus is on aboveground-belowground interactions.

Our Institute’s research focuses on ‘global vulnerabilities and social resilience’. Specifically, we highlight three interconnected themes: diversity, sustainability, and digitalisation.

The Journal of the LUCAS Graduate Conference was founded in 2013 to publish a selection of the best papers presented at the biennial LUCAS Graduate Conference, an international and interdisciplinary humanities conference organized by the Leiden University Centre for the Arts in Society (LUCAS). The…

During the Latin American Studies Master's programme you will focus on key social, political, linguistic and cultural developments which are currently shaping the complex reality of Latin America.

To what extent does human intervention influence the world’s biodiversity? And can we predict how biodiversity and ecosystems will change in the coming years? Inaugural lecture by Peter van Bodegom, Professor of Conservation Biology, on 8 May.

Hortus botanicus Leiden is the first Dutch garden to receive an accreditation from Botanic Gardens International (BGCI). The Conservation Practitioner Accreditation is a certificate that recognizes the policy, knowledge & expertise and education with regard to plant conservation at an international…

This project investigates the causes of the major archaeological change in the period of 40.000-20.000 BC in South Africa.

Crises like climate change and loss of biodiversity threaten our planet. That’s why sustainability is an important topic in research and education across Leiden University. On this website you read how scientists from many disciplines work together in researching sustainability.

Plant communities consisting of many different species are less vulnerable to attacks of plant eating animals or diseases than less diverse communities. It also helps if plant species in one community are not closely related to each other. That is the outcome of an international study published in Nature…

A new study in Nature Plants has explored the most important organising principles that control vegetation behaviour. The insights from this study can be used to improve predictions on climate change. Leiden scientists Peter van Bodegom and Nadia Soudzilovskaia participated in the study.

Master's student Thalia Luden receives an NWO grant for her research proposal about a gene that brings flowering plants back into a growth phase. Companies in floriculture and vegetable seed breeding also contribute to the research.

The treasure houses of Leiden's University Library and Naturalis house wonderful historical collections with dried plants and botanical drawings. Professor by Special Appointment Tinde van Andel will be studying these collections. Inaugural lecture 6 January.

Kirsten Leiss, at the IBL since 2001, is developing new ways of crop protection in order to decrease the use of pesticides: As a model she uses the thrip, a tiny insect which causes economic losses worldwide by silver- and growth damage and virus transmission to vegetables, fruits and flowers.

‘It was a discovery we did not expect,’ says Remko Offringa, professor of Plant developmental genetics. Today he publishes a new trait of a versatile gene in Current Biology: it makes the difference in plants between herbaceous and woody stem growth. A useful feature to prevent dehydration.

The Hortus Botanicus is celebrating its 425-year anniversary this year. It’s the oldest botanical garden in the Netherlands, but how did it come into existence and what kind of research takes place there?

The Netherlands Organisation for Scientific Research has awarded dr. Geeske Langejans a Veni grant for the research project What's in a plant? Tracking early human behaviour through plant processing and exploitation.

On 3 May, World Press Freedom Day was held and the Dutch 2022 'Persvrijheidsmonitor' was presented. The safety of journalists in 2022 was the most important theme in the area of press freedom in the Netherlands. Tarlach McGonagle, Professor of Medial Law & Information Society in Leiden, and Otto Volgenant,…

For more than forty years Heinrich Witte was responsible for the flora in the Hortus botanicus in Leiden. The 19th-century garden manager made the Netherlands famous with plants from Japan. The Old University Library is showing an exhibition of his work (19 August to 4 November).

The Leiden Hortus Botanicus is the oldest botanical garden in the Netherlands. Although perfect for a ramble, it is much more than an open air museum. PhD students carry out their research here and the Hortus makes a serious contribution to biodiversity through the exchange of rare seeds with other…

During the final session of the PRE-University Class Security Challenges in the 21st Century, students showcased their thorough analysis of contemporary safety and security challenges. The results were impressive, according to both the teachers and the assessors: ‘You almost forget that they’re high…

The Hortus Botanicus is celebrating its 425-year anniversary this year. It’s the oldest botanical garden in the Netherlands, but how did it come into existence and what kind of research takes place there?

Great news! From Whit Monday at noon, the oldest botanical garden in the Netherlands will be open for visitors again. After twelve weeks of closure, visitors will be able to come and enjoy everything that grows and blossoms in the heart of Leiden's city center. In order to offer all visitors and staff…

The number of insect species is plummeting, which is why the University is creating a more biodiverse environment around its buildings. Annetje Ottow, President of the Executive Board, planted the first bee-friendly plants in the front garden of Oude UB on 20 September.

Leiden biologist Suzanne Lommen and an international team of scientists have investigated how a beetle can reduce hay fever in Europe. Locally, the beetle is even able to stop pollen production in a plant that causes allergic reactions. Publication in Nature Communications on April 21.

The transition to new and renewable energy sources should be completed by 2050. Researchers in various disciplines at Leiden University are conducting unique research that will help us make this transition and reduce CO2 emissions.

To be eligible for Biology and Education at Leiden University, you must meet the following admission requirements.

To be eligible for Biology at Leiden University, you must meet the following admission requirements.

Science, Institute of Biology Leiden (IBL)

Primate and test specialist Jane Goodall paid a visit to the Hortus botanicus in Leiden on 21 May for a ‘meet & greet’. Goodall, a world-famous researcher and nature protectionist, was presented with an orchid named after her and used the occasion to draw attention to the issue of plant protection.…

LUGO has some news: If you are using a public computer from Leiden University, you can now set your default search engine to Ecosia.

The Hortus botanicus Leiden has one of Europe’s largest collections of living plants from the Asian region. This rich resource is no longer the sole domain of botanists. Multidisciplinary research, teaching and the general public are equally at home in the Hortus. This is the view of Paul Kessler, professor…

Lev Manovich, world-renowned innovator in digital humanities and theorist of digital culture and media art, is the first speaker in the Media Technology MSc program's "Hello World!" lecture series.

Leaf-eating caterpillars greatly enrich their intestinal flora by eating soil. Even effects of plants that previously grew in that soil can be found back in bacteria and fungi in caterpillars. Researchers from the Netherlands Institute of Ecology (NIOO-KNAW) and Leiden University write about this discovery…

The minors offered by the Faculty of Governance and Global Affairs in The Hague are closely linked to the defining image of The Hague as a city of international justice, peace and security as well as the centre of Dutch public administration and international governance.

The center studies the many ways in which issues of law and justice are dealt with in art and literature with a focus on liminal issues and cases. These are issues and cases where law comes to the limits of what it is capable of dealing with and art and literature explore the implications of what is…

Here you'll find selected publications and media attention from our group.

The specialisation consists of a core course in political theory, a methods course, and several optional modules, including political theory options on themes such as Contemporary Theories of Justice, Human Rights Theory, Borders and Migration, and Environmental Ethics. The specialisation concludes…

This programme focuses on the ideas and practices of resistance and change in Latin America and the Caribbean. You will be able to specialise in one of three areas: Culture and identity; State-society relations; and Literature, arts and media.

LUCAS is home to a multidisciplinary academic community that facilitates deep analyses of, and appreciation for, the power and dynamics of cultural products (texts, objects, practices) in our past and present. Through high-quality research, education, and valorisation, our Institute contributes to a…