We carry – and also feel – great responsibility for our laboratory animals. Animal welfare is very important to us. You can read below how we safeguard the welfare of our laboratory animals.

The Animal Welfare Body is closely involved in all aspects of the research on laboratory animals.

Brendan Carroll promoted On Thursday October 30th Brendan Carroll successfully defended his PhD dissertation entitled:

This thesis aims at thinking through the ethical position of animals in a way that differs radically from the manner in which this ethical position is thought within contemporary animal rights discourse.

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

My artistic practice deals with documents and, more specifically, with the use and the exploration of their narrative potential.

We only conduct research using laboratory animals if it is absolutely essential and we have no other means of answering the research question. Read here about how we assess and account for this research.

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

NMR theory can be tough. Luckily, most NMR theory can be visualized to aid you in understanding. The animations below show precession with a 180 degree pulse, J-coupling and T1/T2 relaxation.

Animal Sciences’ contributions to the Development & Disease research theme include the mechanisms and evolution of embryonic development, the development of cognitive mechanisms, and animal models for understanding mechanisms of human disease.

All biological and bio-medical research carried out at Leiden University is subject to strict conditions.

What does the interspecies interpretation of the equality principle mean for the liberal democracy, and is it possible to provide for an appropriate legal and political position for animals without defying the classic-liberal principles of the liberal democratic state?

Main challenges in skin vaccination are overcoming the stratum corneum (SC) barrier and targeting the antigen presenting cells (APC) in the epidermis and the dermis.

In the animal sciences and health research theme, we work with different species of animals to learn more about fundamental biological processes.

The eighth issue of the JLGC explores the diverse and interdisciplinary research on our multifaceted relationship with animals which is currently taking place, re-examining the relationship between humans and animals, and the definitions involved.

This part entails the analysis of an extensive sample of animal bone (c. 30,000 pieces) retrieved from well-defined archaeological contexts of the early period at Tell Sabi Abyad, c. 6800-6200 BC. It comprises aspects of taphonomy, ageing and osteometry, the reconstruction of the local spectrum of domestic…

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.

Keeping and breeding of test animals for the purpose of scientific research and education.

Animal Sciences’ contribution to the Bioactive Molecules research theme includes research on molecules from natural sources, such as plants, insects, and snake venom, with the aim to identify novel anti-cancer, anti-inflammatory, anti-microbial, and anti-diabetic agents.

Did early farmers deliberately use animal manure on their fields?

On 10 October 2019, Janneke Vink defended her thesis 'The Open Society and Its Animals'. The doctoral research was supervised by Prof. P.B. Cliteur.

Animal Sciences’ contributions to the Host-Microbe Interactions research theme focus on the interaction of animal hosts with pathogenic microbes but also the beneficial role of the gut microbiome.

Can animal venoms yield novel antimicrobial peptides?

Speakers from all over the world offered their interesting views on the relationship between humans and animals during the LUCAS Graduate Conference, based around the central theme ‘Animals: Theory, Practice, and Representation’.

Dutch children’s picture books are full of animals, but mainly mammals are portrayed. Especially pets and exotic animals are popular. A large part of the Dutch fauna is less visible, but biologist Michiel Hooykaas of Leiden University sees plenty of opportunities for a more biodiverse book world.

Provides a cutting-edge comparative political economy analysis of welfare and inequality across ten East Asian countries.

Mari Nakamura defended her thesis on 14 March 2017

Legal proceedings conducted on behalf of apes and animals who are starved for the purpose of an ecological project. What position do animals actually have in the rule of law? And what changes need to be made? PhD candidate Janneke Vink defends her dissertation on 10 October.

Who is Economic Man? Every economic paradigm presupposes an anthropology, a theory of human nature. This project explores the anthropologies presupposed and produced by ancient Greek economic texts, and the specific knowledge forms that shape these anthropologies.

Recently, Ingrid Leijten’s book Core Socio-Economic Rights and the European Court of Human Rights was published with Cambridge University Press. The monograph was published in the series Cambridge Studies in European Law and Policy (edited by Laurence Gormley and Jo Shaw) and deals with the protection…

Appropriate animal models for intradermal vaccine delivery are scarce. Given the high similarity of their skin anatomy to that of humans, minipigs may be a suitable model for dermal vaccine delivery.

A systematic approach to quantify impacts of food consumption on animal welfare has been developed by researchers of the Institute of Environmental Sciences, Leiden University in collaboration with ETH Zurich, and effective altruism organizations.

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On 16 December 2019, Jan-Harm de Villiers defended his thesis 'The Anthropomorphic Hegemony of Subjectivity: Critical Reflections on Law and the Question of the Animal'. The doctoral research was supervised by Prof. P. Cliteur.

The Animated Image addresses the entire range of contexts in which images were described by Roman authors as being animated, as well as the accounts that Roman writers produced to explain the animation of inanimate matter.

Leiden University investigates biodiversity not only in the Netherlands, but also abroad, with the goal of improving global nature conservation. We do so in collaboration with local universities. Education is also high on our agenda.

On Thursday 11 January 2018, Xiang Li defended her doctoral thesis: “Collective Labour Rights and Collective Labour Relations of China”. The supervisors are Professor Guus Heerma van Voss and Professor Barend Barentsen.

On 7 February 2019, Helena Ursic-Vrabec defended her thesis 'Uncontrollable: Data subject rights and the data- driven economy'. The doctoral research was supervised by Prof. dr. S. van der Hof.

On 9 January 2019, Willem van der Muur defended his thesis 'Land rights and the forces of adat in democratizing Indonesia'. The doctoral research was supervised by Prof. dr. A.W. Bedner and Prof. dr. J.M. Otto.

Anthropogenic noise has been shown to affect marine animals in various ways, this may have fitness consequences at individual and population level. This thesis aims to increase insight into the quantification of sound-induced behavioural responses that are relevant to fitness, and into factors that…

The national dietary guidelines in Australia, Brazil, Ireland, Japan, Portugal, and Slovenia benefit nutrition, environment and animal welfare, Leiden environmental scientists write in the journal One Earth. However, the national guidelines of other countries face trade-offs, negatively impacting at…

This socio-legal research focuses on the impacts of environmental displacement on land rights and land-related conflict in Mozambique in the aftermath of cyclone Idai, and on the role of the legal framework in addressing these problems.

Hekmat Dirbas defended his thesis on 14 February 2017

This article explores how notions of citizenship are negotiated in encounters between parents and youth care professionals in Amsterdam in the context of heated debates over citizenship and belonging. We draw on ethnographic research on Egyptian migrant parents’ interactions with the welfare state,…

How is inflammation in tuberculosis controlled by interplay between autophagy and inflammasome signalling?

In this episode, we talk with Mariska Kret about the expressions of emotions in humans and animals. Mariska explores the similarities and differences in emotion expression in humans and primates. Want to learn more about Mariska's research and discover why it's important that we learn more about animal…

This project contemplates an ethics of difference and singularity that can effectuate a displacement of anthropocentrism and radical transformation in the way we understand and approach relationality across species borders. PhD defence on 16 December 2019.