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As humans we have a tendency to judge certain actions as either right or wrong. Where does our moral sense come from? We found evidence that infants who are only one year old prefer those who comfort as opposed to ignore another who is sad.

During post-embryonic development into adults, animals face an environment that fluctuates constantly. For example, in nutrient availability, temperature, and osmolarity (e.g., salt concentration).

Promotores: C. J. ten Cate; M. A. Ainslie. Co-promotor: W. Slabbekoorn

A new research line is the development of liquid biopsy fingerprints to predict early Alzheimer’s disease (AD) stage in human in readily accessible body fluids in human (in collaboration with: Dr. Geert-Jan Groeneveld, CHDR; Prof. Elga de Vries, Free University Medical Center; and others).

Promotor: Carel J. ten Cate, Co-Promotor: Hans W. Slabbekoorn

This project aims to develop advanced data analysis methods for monitoring and increasing our understanding on biodiversity dynamics in nature reserves such as the Oostvaardersplassen.

Avian Cognition describes the full range of avian cognitive abilities, the mechanisms behind such abilities and how they relate to the ecology of the species. Synthesising the latest research in avian cognition, a range of experts in the field provide first-hand insights into experimental procedures,…

Looking for ways to travel more sustainably once you've reached your destination? Here, we offer some ideas and helpful links to guide you in becoming a more responsible tourist. Ecotourism, defined as "responsible travel to natural areas that conserves the environment, sustains the well-being of…

Being a better neighbour to the nature around you

Humans and songbirds learn their vocalizations early in life by exposure to the vocalizations of adult conspecifics. Often, better learning outcomes are achieved with live, social, tutors than with audio-only exposure to vocalizations.

Spaanse Water

Can the venom of snakes, scorpions and other animals be sources of new antibiotics?

Insights in diet, climate and ecology

Five talks will be given during the Leiden Science Family Day: two children's lectures and three lectures for adults. Will you be there ?

Prof. Elizabeth de Lange is concerned with the allocation of resources for the conduct of science towards the goal of best serving the public interest. Also, while she underscores that there is still the need for using animals in drug research, she is concerned about this use, and advocates the use…

kiem grant: Investigating the anti-inflammatory potential of the PRG4 protein in preventing and alleviating rheumatoid arthritis

S.S. Kolipaka’s thesis questions and investigates the survival prospects of reintroduced tigers and their offspring’s in the human dominated landscape of Panna tiger reserve in India.

New drugs for use as tuberculosis (TB) treatment are needed due to the constrains of classical antibiotics against TB and the rise of antibiotic-resistant strains, making TB a harder and harder disease to treat.

Questions of justice are not only the concern of legal professionals, politicians and activists, they also permeate culture at large. Literature, Cinema, Music and Artworks often revolve around questions about rights, justice and fairness, raising a wide range of issues, such as: how do we understand…

The thesis is about the study of shell evolution of the Hydrocenidae of the genus Georissa. This thesis started with a general overview on the evolutionary process of animals due to ecological changes.

This PhD subproject concentrates on 16th-century ichthyology and takes Gessner’s Historia piscium (1558) (further HP) as its point of departure and focus.

Promotor: G.A. Persoon, Co-promotor: H.H. de Iongh

An international research team consisting of Katharina Riebel as leading PI and two international collaborators were awarded a Human Frontier Science Program grant for their proposal ‘Seeing voices’: the role of multimodal cues in vocal learning.

This project, under the supervision of Prof. Dr. Hans van der Plicht, comprises several studies aimed at the use of isotopes occurring naturally in organic material as tracers for both the climate change and its cultural impact at about 6200 BC. The research will be carried out by the co-applicant at…

What is emotion in human and nonhuman animals? How do emotions get to expression and how do they impact on our interactions, our decisions to trust, distrust or cooperate? Why do we mimic and synchronise affective processes?

Members of the collective explore what it means to be ‘human’, in the past and present, from a range of different perspectives and inter-disciplinary approaches.

What categories exist in the languages of pastoralists? Do these semantic concepts reflect universal or languagespecific tendencies? What (environment? culture?) governs the similarities (or the differences) attested crosslinguistically in cattle colour systems?

Political Science: National and International Politics is a broad study with a lot of depth. You will study political issues at the local, national and international levels, from a variety of perspectives. You will be taught by renowned, committed professors. In Leiden you will find a real student city…

Great apes and the right to health

This thesis focuses on enhancing predictions of central nervous system drug exposure using the LeiCNS-PK3.0, a physiologically based pharmacokinetic model.

The main aim of Eva's research is to create a frame of reference in which these animals as symbols must be understood, be they depicted on pottery, as amulets, as floor plans or in any other way. This frame of reference can then be used to interpret the various animal images encountered by Caribbean…

In this thesis, we have studied the potential of the zebrafish larval model in studying the ECS, as a complementary model to the existing rodent models.

Promotor: Prof.dr. H.P. Spaink, Co-promotor: Dr. M. van der Zee

Songbirds as vocal learners learn their songs and song preference from social tutors⁠. Tutor choice for both song and preference learning are important to characterize for understanding individual learning performance and cultural transmission of song⁠.

Promotor: H.P. Spaink, A.H. Meijer Co-promotor: R. Marin-Juez

Promotor: C.J. ten Cate, Co-promotor: H.W. Slabbekoorn