45 search results for “primates” in the Public website
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Striking similarities in how humans and other primates search for food
How unique is the human capacity for learning and adapting to an environment? In field research – in the rainforest and Artis Zoo – primatologist Karline Janmaat is studying how humans and other primates adapt to their environment in their search for food. She will give her inaugural lecture as Professor…
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Tonko Zijlstra
Faculteit der Sociale Wetenschappen
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Marco Maiolini
Science
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Combination, variation and reproductive cues in vocalisations of the common marmoset (Callithrix jacchus)
How do common marmosets combine their calls into sequences and how are their vocalisations influenced by reproductive state?
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Nonhuman primate adenoviruses for use as oncolytic agents
PhD defence
- About this minor
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Guts and Brains
An Integrative Approach to the Hominin Record
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Towards an interspecies health policy
Great apes and the right to health
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Digging for data: the rise and fall of a Miocene mammal biodiversity hotspot in the Vallès-Penedès (Catalonia, Spain)
The Vallesian, 11.1-9 Ma, was a special time in the Vallès-Penedes basin near Barcelona, where a biodiversity hotspot existed. Europe had a subtropical climate, with rhinos, forest giraffes, lions, hyenas, flying squirrels and primates.
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The comparative biology of language learning
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.
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Travel reveals the mind
Exploring the minds of our primate cousins in the wild, using under-exploited observations of their travel paths. A large set of observations of the travel paths of wild primates provides new opportunities for in-depth insights in the evolution of the mental abilities that primates, including ourselves,…
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An empire of 2000 cities: urban networks and economic integration in the Roman Empire
The central aims of this project are to establish the shapes of the various urban hierarchies existing in the provinces of the Roman Empire and (especially) to use the quantitative properties of these hierarchies to shed new light on levels of economic integration.
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Scleral pigmentation leads to conspicuous, not cryptic, eye morphology in chimpanzees
Researchers of the National University of Singapore and Leiden University have discovered that chimpanzees and bonobos share the contrasting colour pattern seen in human eyes, which makes it easy for them to detect the direction of someone’s gaze from a distance.
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PhD grant for Simone Lemmers
Simone Lemmers has been awarded a Leverhume trust funded PhD Position at the University of Durham, UK in the field of Biological Anthropology supervised by Dr. Jo Setchell (Antropology, Durham University) and Dr Wendy Dirks (Newcastle University) starting October 2013.
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Mandrills; timing is everything
Mandrills keep track of how many days have passed to be the first to gather the food. This is shown by a team of researchers from the University of Amsterdam, Leiden University and ARTIS Amsterdam Royal Zoo. The team discovered that mandrills have the cognitive skills to learn time intervals of several…
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Fiffy the chimpanzee can see again thanks to unique operation at the LUMC
Fiffy the chimpanzee had rapidly developed cataracts in both eyes that made her as good as blind. Eye doctors at the Leiden University Medical Center (LUMC) have now managed to replace the lenses in both her eyes. As far as we know, Fiffy, who is thought to be between 30 and 40 years old, is the first…
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Foraging skills may have made the essential difference in the evolution of our huge brain
Hunter-gatherers acquire their food through complex gender-specific foraging techniques for a relatively stable and diverse supply of energy. New research indicates that this specialisation by boys and girls starts at a very young age. Most likely, this enabled the human species to evolve much larger…
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Chimpanzees recognise one another from their rear ends
It is important for social animals to be able to recognise one another quickly. Humans are able to recognise each other immediately from their faces. Faces are also important for chimpanzees, but a new study by neuropsychologist Mariska Kret in PLOS ONE shows that the animals' buttocks also play a…
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Scratching is contagious when solitary orangutans are in groups
If someone around you yawns, the chances are that you too will soon yawn. In orangutans it has now been found that scratching is very contagious. This is what cognitive psychologists from Leiden discovered at Apenheul Primate Park. Publication in American Journal of Primatology.
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Glucocorticoids in zebrafish
A novel in vivo model system for studies on glucocorticoid resistance
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Social decision making in humans and great apes
Efficiently responding to others’ emotions has great survival value, especially for social species, such as primates, who establish close, long-term bonds with group members. The closest living relatives to humans are the chimpanzee and the bonobo. Studying these species, and comparing them on the exact…
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Young babies laugh like apes
Young babies laugh like adult apes do: producing sounds while inhaling and exhaling. Adult humans produce sounds on the exhale only. Cognitive psychologist Mariska Kret and colleagues have published an article about the development of human laughter in the journal Biology Letters.
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Meet and greet Jane Goodall in Leiden’s Hortus
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.…
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The cognitive abilities of birds
The recently published book ‘Avian Cognition’ is the first multi-author book to provide a comprehensive treatment of the cognitive abilities of birds and how they compare to those of other animals. Carel ten Cate, professor of animal behavior at the Institute of Biology, and Susan D. Healy (StAndrews…
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Podcast: Animals have emotions
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…
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Dr. Jatna Supriatna appointed as visiting scholar at Faculty of Science
During his visit on 12 April 2016, Dr. Jatna Supriatna was appointed as visiting scholar at the Faculty of Science of the Universiteit Leiden. Dr. Supriatna is a biologist, and is a senior lecturer at Universitas Indonesia’s Department of Biology. His appointment was made in the context of increasing…
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Mariska Kret on Techregister about babies laugh like chimps
Young children are not just cheeky monkeys — it turns out they actually laugh like chimpanzees, too. 'That’s because both babies and chimps chuckle while inhaling and exhaling, unlike adult humans who laugh mainly during exhalation', says cognitive psychologist Mariska Kret on Techregister.
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Psychology Connected on why we fight, and how to find peace again
After discussing the climate, our psychologists once again broach a big topic: war and peace. Or, perhaps: cooperation and conflict. For no matter how benevolent our intentions towards each other, friction never seems far away. Researchers Angelo Romano and Tom Roth offer explanations and practical…
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IBL Spotlights - Evolution& Biodiversity
Lecture
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Are modern humans simply bad at smoking?
Scientist looked for the genetic footprint of fire use in our genes, but found that our prehistoric cousins - the Neanderthals - and even the great apes seem better at dealing with the toxins in smoke than modern humans.
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Bonobos’ attention attracted by emotions
Bonobos – just like humans – pay more attention to pictures that show other members of their species displaying emotional behaviour than to neutral scenes. Leiden researcher Dr Mariska Kret made this discovery while conducting research at Apenheul Primate Park.
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Orangutans yawn contagiously when they see others yawn
For the first time, contagious yawning has now also been found in a species that roams its territory mostly in solitude and is less frequently engaged in social interactions: the orangutan. Publication in Nature Scientific Reports by an international group of scientists with lead-author Evy van Berlo,…
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LIBC SYLVIUS Lecture
Lecture
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Publications
Here, you can browse the publications of the Navigation Lab Leiden:
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Assume that animals have feelings too
We should assume that animals can have feelings too. From an ethical point of view this should inform our dealings with animals, researchers from Leiden University and Utrecht University argue in an opinion article that was published in the scientific journal Affective Science on Thursday 10 March.
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Bonobos, unlike humans, are more interested in the emotions of strangers than acquaintances
Humans and bonobos show striking similarities as well as differences when they see pictures of conspecifics. Both are more interested in photos of conspecifics that show emotion. But while our human attention is more easily drawn to photos of family members and friends that express certain emotions,…
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Unraveling the mysteries of Multiple Sclerosis
Leiden chemists discovered a new mechanism which might explain how multiple sclerosis shifts to a more severe form. Their findings contribute to unravelling the mysterious course of the disease. They have published their findings in the journal Biochemistry.
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Liveable Planet Lunch Series “A Forest of Knowledge – Investigations on foraging cognition in tropical forest foragers”
Lecture
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The future of the past is enough to make you feel down
The slogan of the Faculty of Archaeology, ‘The Future of the Past starts at Leiden University’, might sound like empty marketing speak. But there is something to it. The past can teach us a lot about climate change and that could make us fear the worst for our future. Archaeologist Gerrit Dusseldorp…
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Leiden University celebrates curiosity at 449th Dies Natalis
How has evolution shaped our curiosity? And how does that curiosity ensure that we now have the technological ability to discover whether we are alone in the universe? This was all covered during the celebration of Leiden University’s 449th Dies Natalis.
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POPNET connects with Padraig Maccarron and Shane Mannion
Lecture
- IBL Symposium 2022
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Submission Guidelines
All manuscripts submitted to Inter-Section need to adhere to these guidelines. Since 01-08-2022 Inter-Section uses APA7 as a reference system. Inter-Section therefore now follows the new Faculty of Archaeology guidelines concerning referencing and bibliography.
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Team
The team of WIIS-Netherlands exists out of the board members and the advisory council.
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Augustinians reveal recipe for close friendships
It is a holy grail among behavioural scientists: can you predict how close a group will become? An international research team from Leiden, Oxford and Helsinki has investigated the development of friendships within the Leiden student association Augustinus and obtained some remarkable results.