Blogs of the CEG research group

Published in October, startling results of natural selection in humans indicates certain immunity genes may have helped people survive the Black Death of the 1346-1350. Caused by the bacterium Yersinia pestis, bubonic plague has swept across the globe (as pandemics) numerous times over the centuries, resulting in untold […]

When floods are mentioned, what first comes to mind is a disastrous catastrophe wrecking houses, devastating crops and, occasionally, even costing human lives. Yet, what may be a bad news for an average human could be a strike of luck for a beetle collector. Imagine flood water covering […]

The answer to this question may lay in the paper I am presenting today and at some level genomes seem to be very stable. It was probably one of the most discussed papers at the museum this year. It was the topic of several journal clubs and shows […]

Although I am working almost exclusively with marine invertebrates, one of my favourite papers this year was about birds. Hughes et al. (2022) set a quite ambitious goal: to test whether the loss of species threatened with extinction could lead to morphological and phylogenetic homogenization across the entire […]

Although frequently neglected, animals and fungi share a close evolutionary relationship. Despite the huge differences in morphology, ecology, life history and behaviour they represent the two major lineages within Opisthokonta, a clade that was earlier referred to as the “Fungi/Metazoa group” in the Tree of Life. You may […]

Text and pictures by Maël Grosse Among all the worm-like animals in the sea, polychaetes, or bristle worms, are probably the most diverse and striking group. This month is the opportunity to look at one of the most beautiful group of polychaetes (Fig. 1), the family Terebellidae Johnston, […]

Today, our paper about Perinereis species from the intertidal coasts of the Red Sea, Gulf of Suez and Suez Canal lead by Asmaa Haris Elgetany was published in ZooKeys. It is her third paper from her internship at our group and fittingly we are describing three new species […]

By now it is already a good tradition for the FEZ group at the Natural History Museum Oslo to provide in December an advent calendar blog. In previous years, the focus was on our own research and scientific output. This year we thought to take a different approach. […]

Suddenly it’s already November, so let us introduce another cool animal in the FEZ blog. This time you can learn about an enigmatic little-known group: the acoels. Acoela is an order of tiny flattened unsegmented worms, belonging to the phylum Xenacoelomorpha (pronounced “zenacelomorpha”). They live mainly in benthic […]

Spiders, insects and even more so worms and wormlike invertebrates are often considered ugly and disgusting, at least unappealing, and sometimes even dangerous. Certainly, there is also beautiful invertebrates such as e.g., butterflies, beetles, dragonflies, or some sea slugs, but usually invertebrates appeal little to our understanding of […]