The holotype of a cicada species
August 24th, 2022

True bugs in the picture

This is it: Pseudaufidus trifasciatus, a cicada species described in 1957 by entomologist and curator H. C. Blöte from Leiden. The cicada depicted above is not just any specimen of that species, but it is the so-called holotype: The specimen used when the…
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Michiel Hooykaas
June 27th, 2022

The day of the PhD defense: Michiel Hooykaas

On 30 June 2022 at 10.00 AM Michiel Hooykaas will defend his PhD thesis at Leiden University in true style. Under his suit, he will be wearing a shirt with a bird print that alludes to his field of research and the term that he coined himself: species…
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Le Qin Choo
March 23rd, 2022

The day of the PhD defence: Le Qin Choo

Thursday March 24th at 13:00, Le Qin Choo will enter the Agnietenkapel in Amsterdam to defend her thesis entitled “Genomic variability and population structure in shelled pteropods”. For her PhD research at Naturalis and the University of Amsterdam, she…
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Witte klaver in de stad
March 18th, 2022

The city has a direct influence on evolution

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, the municipality of Leiden and Naturalis contributed substantively and…
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