How has early development in R. ocellatus been modified as a result of its parasitic embryonic lifestyle?

To gain more insight into the evolutionary development of orchid flowers and fruits, the orchid species Erycina pusilla was studied. The evolutionary origin of the median petaloid sepal, the callus on the labellum, and the stelidia was studied.

The study of orchid flowers, fruits, and inflorescences is crucial due to the remarkable diversity of orchid species and their unique adaptations to pollinators and seed dispersers. However, our understanding of the evolution and development of these organs within the orchid family remains limited.

Balsaminaceae is a diverse plant family characterized by a huge floral morphological diversity.

This thesis investigates the structural evolution and assembly of galaxies since the first few billions years after the big bang.

Responsible Research and Innovation (RRI) implies that societal actors (researchers, citizens, policy makers, business, third sector organisations, etc.) work together during the whole research and innovation process in order to better align both the process and its outcomes with the values, needs and…

Promotores: Prof.dr. P.M. Brakefield, Prof.dr. B.J. Zwaan (Wageningen Universiteit)

How did toxin genes evolve from harmless physiological genes?

Plant Sciences' contribution to the Evolution & Biodiversity research theme is to understand what are the key drivers of plant biodiversity during evolution with a focus on plant life history and resilience traits and develop tools to restore and maintain plant biodiversity.

Animal Sciences’ contributions to the Evolution & Biodiversity research theme include evo-devo research, the evolution of cognitive and behavioural traits, and the evolutionary mechanisms of stress adaptation. This research involves both indoor and outdoor studies.

The HARVEST project explores the dietary choices that our hominin ancestors and relatives made, by recovering information on what they consumed, and how factors like environmental variation, intrinsic biology, and development of food processing technologies could have influenced their decisions.

The Great Rift Valley in Africa is a real treasure trove for discovering early human fossils. The fossils found in this part of Africa have determined our view of human evolution. But was the Great Rift Valley really the place where evolution took place or just a place where fossils are well preserved…

Despite the field’s general agreement that pyrotechnology had a significant impact on the cultural evolution of humankind, our understanding of the origins and development of fire use and its role in humankind’s cultural evolution is very limited, blurred by strong disagreements over its chronology…

What is the relation between brain development and social and cognitive development across childhood, adolescence and adulthood?

Evolution & Biodiversity is one of the four research themes of the Institute of Biology Leiden.

The programme group Parenting, Child Care and Development studies how parents and other educators affect children's development, well-being and health. The emphasis is on the child's social, emotional and cognitive development and prevention of problems in these areas.

Law is of major importance for socio-economic development. Ideally, law organizes human interaction in a way that promotes justice and legal certainty and protects vulnerable groups from exploitation and arbitrariness.

Do you want to understand the complexities of today’s gender issues, social media use, food habits, social justice movements, labour relations or religious expressions? Join our international bachelor's programme in Cultural Anthropology and Development Sociology and get insight into people's social…

This multidisciplinary minor provides students with knowledge on how and why humans became the way they are. The minor focuses on the evolution of the species Homo sapiens from other hominin lineages and animal ancestors, and on the various factors shaping this process. Not only is human evolution of…

On 18 May 2011, Dr. Ben Knapen, Minister for European Affairs and International Cooperation, delivered the annual Van Vollenhoven Lecture on “Rule of Law and Development”.

We cover the entire spectrum from target identification to the evaluation of the efficacy and safety of novel medicines in clinical practice.

Cultural Anthropology and Development Sociology is a social science. Anthropologists investigate the ways in which people give meaning to different aspects of their life and the way they interact with each other.

This edited book presents case-studies and reflections on the role of languages and their analytic study in development practices across four regions: Africa, Asia, Australia, and the Pacific.

Improving healthcare with our scientific discoveries: that is the goal of pharmaceutical research at Leiden University. And there’s a lot involved in that. Our research starts with the discovery of the effect achieved by a particular substance, and sometimes continues all the way through to the development…

We are very happy to welcome you to spend a semester or year studying with us at the Institute of Cultural Anthropology/Development Sociology (CA-DS). Here you will find practical information on studying CA-DS in Leiden as an exchange student.

Female and male songbirds sing equally elaborate songs in some species, but in others, females do not sing like males or not at all. How did such pronounced differences in male and female communication evolve?

Vulnerability and the associated levels of social resilience is what fascinates the researchers at the Institute of Cultural Anthropology and Development Sociology. What links a Japanese fisherman after the tsunami at Fukushima with a Ghanaian goldminer in an increasingly industrialised work environment?…

In this course, you will develop an understanding of evolutionary processes and their formative power. You will see how evolution has shaped biodiversity, and continuously influences our daily life.

The specialization Peace, Justice and Development at Leiden University examines the legislation that governs international relations in a global society.

Studies in Human Evolution is a series of the Faculty of Archaeology, Leiden University and The Max Planck Institute for Evolutionary Anthropology, Leipzig.

Why do plants produces always produced so many slightly differing metabolites within a particular chemical class?

The programme group Parenting, Child Care and Development carries out general courses within the field of Education and Child Studies and specialised courses within the field of Child and Family Science.

Central elements in the research activities of all programme group members are: attachment, sensitive caregiving, and prevention and intervention.

Cultural Anthropology and Development Sociology at Leiden University studies the everyday practices of individuals and groups around the world in relation to the complex global challenges of diversity, sustainability, and digitalisation.

Discover the Master's programme in Cultural Anthropology and Development Sociology at Leiden University. Undertake independent ethnographic research and contribute to society.

We aim to provide new insights relating to the spectacular multi-cellular life cycle of streptomycetes and other actinobacteria.

Microbial Sciences' contribution to the Evolution & Biodiversity research theme focuses on understanding how bacteria sense and respond to their environment, and how bacterial diversity and evolution is influenced by cooperative and antagonistic interactions taking place between microbes.

Dark matter represents around eighty per cent of the total mass in the Universe. Yet, we still don't really know what it's made of. Astronomer Pavel Mancera Piña is looking for answers. With a Veni grant from NWO and the most advanced telescopes, such as the James Webb Space Telescope, he will investigate…

Study information

Explore global cultural differences with our International Bachelor's in Cultural Anthropology and Development Sociology. Delve into gender issues, social media trends, food habits, social justice movements, and more.

If you have the ambition to continuously develop and grow in your work, then Leiden University is an attractive employer for you.

Indonesia’s labour law regime has changed profoundly since 1998, reflecting the sweeping social and political developments that followed Soeharto’s fall from power.

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

Galaxies in the local Universe fall into two main categories of spirals and ellipticals. In this Thesis, we explore the structural evolution of galaxies into this bimodal distribution.

Study why and how, in countries around the world, people mobilize around ethnic, racial, religious and social identities, and explore the role of political institutions in mitigating conflicts that arise from such mobilization.

Negotiation can only really be an alternative to warfare, if the parties agree on a framework of rules and procedures. And if the confidence of the partners may increase in another. But negotiations continue to wage war by peaceful means.

The soil-dwelling, filamentous bacteria of the genus Streptomyces are renowned for their production of useful secondary metabolites including antibiotics. The work described in this thesis provides new insights on the role and regulation of antibiotic production and resistance in these bacteria.

The programme group Parenting, Child Care and Development is located in the Faculty of Social and Behavioural Sciences at Leiden University near Central Station.

In order to compare languages, it is important to have a thorough knowledge of the specific languages you are studying. Gijsbert Rutten and his team are investigating the origin of Standard Dutch and the repression of ‘non-standard’ variants between 1750 and 1850.