Saccocirridae is considered a meiofaunal or interstitial annelid family as all species are found in the space between the sand grains. While a few species might be quite small with 3 mm, several are quite large with up to 3 cm in length. Additionally, they can be quite […]

Protodriloidae is a family of only two species in the genus Protodriloides. Together, with the families Saccocirridae and Protodrilidae, they are part of the order Protodrilida. We will learn more about the other two families in the next two months. Hence, look forward to it. Both Protodriloides species […]

The next interstitial annelid family, I would like to present to you are the polygordiids. Even though these worms are part of our MeioSkag project investigating meiofaunal species in the Skagerrak, they are not truly meiofauna as their body length ranges from 1-10 cm. Hence, they are quite […]

A PhD defense is an important step in the career of a young researcher. However, for the defense itself it needs actually three to tango in Norway – the candidate and the two external opponents. This year, I had after some years again the honor to be one […]

Written by Hilda Jakin Osei-Mireku What a “zombie fungus” and a ghost moth larva can teach us about patience, transformation, and waiting during Advent Advent is a season of waiting, anticipation, and preparation. While many of us count down the days to Christmas, high in regions such as […]

I have to admit that I do not follow the annual announcements of the various Nobel Prizes with equal interest. Perhaps not surprising, the Nobel Prize for Economic Sciences usually scores rather low as compared to e.g., the Nobel Prize in Physiology or Medicine that is by default […]

In 2018, Lewin et al proposed the ambitious goal to sequence a reference genome of each eukaryotic species on Earth within 10 years called the moonshot of biology. This proposal let to the establishment of the Earth Biogenome Project (EBP) and gained a lot of traction and momentum […]

In a previous blogpost, I asked the question how long species are able to form hybrids after their lineages diverged — and I showed that certain species of flowering plants (angiosperms) retain this ability for at least 50 million years (Ma). This question is of particular significance because […]

While working in the Museum collections, I came across a small cardboard box containing few scattered bones. In that moment, I found kind of amusing that such a tiny box contained the remains of the largest living animal: the blue whale (Balaenoptera musculus Linnaeus, 1758). Whales have captured […]

In our times, science has come under increasing pressure by fake news and politicians undermining the trust in scientific institutions. Hence, efforts are made to undermine scientific integrity from the outside. In such times, it is even more important than ever that the scientific community adheres to its […]

As part of our new ArtsDatabanken project MeioSkag, we are investigating interstitial and meiofaunal species occurring in sediments of the Norwegian part of the Skagerrak. Among others, this includes the so-called interstitial families within Annelida. In this series “Group of the month”, I will now present the different […]

A couple of days ago we published the genome of a brachiopod species, in specific Discradisca antillarum in the journal G3. Brachiopods are a group of shelled, filter-feeding marine invertebrates also known as lamp shalls. Though they superficially resemble bivalve mollusks, brachiopods are not. Brachiopods have the shells […]

Annelida, or segmented worms, is a vast and diverse group of metazoans of over 20000 species that includes, amongst others, earthworms, leeches, echiurids, sipunculids and polychaetes. With over 300 species the polychaete family Cirratulidae is one of the most species-rich and common in benthic assemblages in a variety […]

We all know a worm. We all know a snail. Or at least, we think we do.But nature often blurs the lines we draw so confidently. In the case of vermetid snails, also known as “worm snails,” appearances can be deceiving. These creatures look like worms but are, […]

The marine biodiversity of Europe is generally considered well known comparison to other regions, especially of the global South. However, also in European waters, some habitats and regions have been scarcely studied and many species could remain to be discovered and described. This has been shown, for example, […]

Drawing a shark could be fun, so why not following a step-by-step tutorial for it? As many suggest, let`s start by deconstruct your soon to be shark in simple geometrical figures. A triangle can be the head, a dorsal fin or a tail. One or two rectangles for […]

The phylum Entoprocta (also called Kamptozoa) are known as the nicking worm. Globally, 260 species are known to date and 30 in Norway. The individuals are small with a body size of 0.5 – 7 mm. However, besides solitary species, other species build colonies and these can be […]

Etter Stian hadde vi en annen masterstudent, Pia, som konsentrerte seg om et rent bioinformatisk tema i vår gruppe. Hun forsvarte i går sin avhandling med tittelen «Evaluating the Applicability of Macrosynteny as a Phylogenetic Trait Based on an Exploration of Spiralia» (Evaluering av makrosyntenis anvendbarhet som et […]

After Stian, we had another Master student, Pia, who concentrated on a purely bioinformatic topic in our group. She successfully defend here thesis with the title “Evaluating the Applicability of Macrosynteny as a Phylogenetic Trait Based on an Exploration of Spiralia” yesterday. Like Stian, Pia is also moving […]

Why is this group interesting to study? The marsh violet group (Viola sect. Plagiostigma, subsect. Stolonosae, in part; Violaceae) is one of numerous north-temperate species groups that diversified in response to climate cooling in the last ~5 million years. Thus, studying this group has the potential to elucidate […]

Featured photo: Euphausia superba, the Antarctic krill. Photo by Professor Dr. habil. Uwe Kils, uploaded to en.wikipedia.org. This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. https://creativecommons.org/licenses/by-sa/3.0/ Tiny but mighty, krill are among the most abundant animals on Earth and their collective role is […]

Cover image: Rhytidocystis polygordiae from the intestines of a polychaete Polygordius sp. (Scale bar = 15 μm) from Leander & Ramey, 2006. https://doi.org/10.1111/j.1550-7408.2006.00109.x For this month’s group, I’m introducing another group of enigmatic protists, the family Rhytidocystidae. They belong to the phylum Apicomplexa, which is known for many […]

Let me introduce you to the Group of the Month for March: A fungus! At this point you are probably thinking to yourself: “Wait a minute, that’s not a fungus. That’s clearly just a beetle…” And for the most part, you’d be right! Let’s zoom in a bit […]

Susanna successfully defended her Master thesis last week. In her project, she wanted to address the evolution of the mitochondrial genome order of hairybellies (Gastrotricha). Gastrotricha are very tiny and flat animals, which are usually not longer than 1 mm. Nonetheless, they can have very delicate structures on […]

Last week, we published an paper on meiofauna and why it is important to study them and which scientific questions should be addressed next. The paper “Fundamental questions in meiofauna research highlight how small but ubiquitous animals can improve our understanding of Nature” was published in Communications Biology. […]