A global biological study has provided the most direct evidence to date that humans, and specifically cities, are the drivers of evolutionary change on Earth. Leiden University, Naturalis and the Municipality of Leiden worked on and helped fund the study.

A theoretical project on the insights gained by human (including infant), nonhuman animal and computational studies on artificial grammar learning; identifying the critical questions for future research by developing novel experimental and computational approaches to address these issues.

Streptomyces are multicellular, Gram-positive bacteria in the phylum of actinobacteria which produce a high amount of bioactive natural products of which the expression is tightly coordinated with the life cycle.

Published on 26 February 2021.

This thesis pioneers diatom molecular identification and quantification through genome-scale methods, with four key aims: (i) reviewing DNA/RNA sequencing methods in aquatic biomonitoring to highlight their strengths and limitations;

Do humans and zebra finches share cognitive mechanisms that are important for speech perception?

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The Leiden University Shii Studies Initiative (LUSSI) is hosting a two-day online conference on Islam and Evolution.

A central and much debated topic in the study of language acquisition concerns the nature of the learning mechanisms that are required. Are the computational and learning mechanisms that guide learning about language structure special and specific to language or humans?

Are predictive archaeological maps a reliable tool to play an important role in the spatial planning? One of the goals of this project was to develop best practices for the production and application of the models.

Promotor: Prof.dr. P.G.L Klinkhamer

An international team with researchers from Leiden revealed how a bacterium repurposed an internal system to control its movements. Movement control is very important in host invasion, which can lead to disease. Publication on 27 April in Nature Communications.

The main purpose of DNAmarkerpoint is to better understand the ecology, evolution and biodiversity through the study of ancient- and modern DNA.

How does FoxP1 affect auditory perception on a behavioural and genomic level?

A study by an international group of scientists headed by Prof. Michael Richardson showed that asymmetry in the snake lungs manifests itself early in development.

Which traits did change due to the invasion process of plants and how do these traits contribute to the invasiveness of such species. What is the role of carbohydrate accumulation? What is the function of carbohydrate accumulation in plants? Is genetic variation depleted in invasive species under se…

The emissions of the Chinese industrial sector alone comprise 24.1% of global emissions (7.8 GtCyr−1 in 2015). This makes Chinese industrial emissions of unique national and international relevance in climate policy. This study reports a literature survey that quantitatively describes the evolution…

How do teachers’ knowledge, practices, perceptions, job satisfaction and workload in secondary education develop during a school innovation in the context of differentiated student development?

How do common marmosets combine their calls into sequences and how are their vocalisations influenced by reproductive state?

We study the link between the acoustic, behavioral and physiological health of birds and prominent pollution factors. We aim to explore causation through experimental studies on detrimental factors like traffic noise, particulate matter and chemical toxins. Our primary target is scientific progress…

What the Sex Lives of Bugs, Birds, and Beasts Tell Us About Evolution, Biodiversity, and Ourselves, Menno Schilthuizen reports from the front lines of evolutionary biology, on a quest to make sense of the origins, workings and evolution of our and other species’ reproductive selves.

Zijn sociale aspecten van anxiety-like gedrag bij zeer jonge zebravissen al aanwezig? Zijn deze afhankelijk van de coping style (persoonlijkheid) van het individu? Zijn deze gedragingen endocrien te moduleren, bv door oxytocine?

In their recent blog, Marieke Liem and Jolien van Breen reflect on the representation of immigrants amongst homicide victims - is there evidence that people from immigrant groups are over-represented amongst homicide victims? And if so, can we discover the reasons why? Find out more through the link…

What are ‘missing links’ in research on teacher professional development trajectories? We focus on the role and development of teacher facilitators in designing and implementing (collaborative) professional development trajectories.

Promotor: Prof. dr. A.G.G.M. Tielens

Does Artifical Light at Night (ALAN) disrupt seasonal physiological and behavioral patterns in migrating freshwater fish?

A new analysis of the king cobra genome by Michael Richardson, Christian Henkel (IBL) and collaborators at the IBL and Naturalis, Helsinki and Singapore has been published in

From 19 to 21 September 2018 the third annual conference of the Law and Development Research Network (LDRN) will take place at Leiden University. The theme of the conference will be 'Interfaces'.

Evolution acts via mutations in amino acid sequences. Substitution of essential amino acids leads to a nonfunctional protein. l.

The Early Upper Palaeolithic (EUP) record throughout Europe is characterized by major changes in human behaviour.

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.

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.

Structural variants (SVs) are the hidden architecture of the human genome, and are critical for us to understand diseases, evolution, and so on.

Education and Organisation Development

The thesis addresses the long-term dynamical evolution of hierarchical multiple systems.

Promotor: Prof.dr. E Gittenberger, Co-Promotores: C.H.J.M. Fransen, Dr. B.W. Hoeksema