Who Gets to Do Science
Julia Van Etten turned an $80 motel room in Nags Head, North Carolina, into an improvised laboratory and helped identify two new species of microscopic amoebae, Paulinella marae and Paulinella murrayi. The discovery began in May 2021, in the fifth year, when Van Etten, an evolutionary biologist who joined the University of Maryland as an assistant professor in 2026, collected a water sample from a roadside marsh while visiting the Outer Banks with her family. She used a $300 hobby-grade microscope and a $198 camera she had brought for her Couch Microscopy project. That’s the setup. Not a gleaming institutional fortress. A motel room, a roadside marsh, and equipment cheap enough to fit inside the cracks of the system.
In that sample, Van Etten spotted two tiny cells she had never seen before, each about 15 micrometres long. She later determined they belonged to two different undescribed species of the rare photosynthetic amoeba genus Paulinella. The work then expanded into a larger investigation involving several researchers, including Andrew Willoughby, a postdoctoral researcher at Duke University, and John Burns of Bigelow Laboratory for Ocean Sciences. The scientific work used samples from Roanoke Sound in Nags Head, an area the researchers had been visiting since 2021.
What the Motel Room Made Possible
Van Etten and the other scientists examined samples in a motel room and used pulled Pasteur pipettes, ordinary micropipettes and tools made by supergluing toothbrush bristles onto coloured pencils to isolate individual cells. They then placed selected cells into preparations for culturing, genomic analysis and scanning electron microscopy. The image is hard to miss: researchers improvising with toothbrush bristles and coloured pencils because the work of discovery didn’t wait for polished institutions to bless it.
The researchers said Paulinella was so uncommon in their samples that they generally did not encounter more than one cell in an individual drop of water. They found the two species differed in physical characteristics, including size and the arrangement and orientation of their silica scales. P. marae has an elongated shell-like structure measuring approximately 15 to 19.1 micrometres in length, and the cells were found in brackish water with salinity ranging from about 10 to 14 at the North Carolina site. The researchers observed both species at the same location over several years, though they remained rare. Attempts to establish a long-term axenic culture were unsuccessful, although some cells survived and divided for periods of up to about a month in filtered ambient water and culture medium.
What They Found, and Why It Matters
The discovery increased the number of known photosynthetic Paulinella species from four to six. The researchers said observations from hobby microscopists and naturalists suggest these organisms may be much more widely distributed than their limited scientific records indicate. That matters because the official record is always narrower than the world itself. People outside the usual channels keep seeing what the institutions miss.
The study also matters because Paulinella offers an unusually recent example of primary endosymbiosis, the process in which one organism incorporates another and eventually develops a permanent biological relationship with it. Photosynthetic Paulinella acquired a photosynthetic organelle from a cyanobacterial endosymbiont roughly 100 million years ago, making the group useful for studying how an acquired organism becomes integrated into the biology of its host. The University of Maryland described the process as analogous to the much older primary endosymbiotic event associated with the evolution of algae and land plants more than a billion years ago.
Van Etten’s research focuses on horizontal processes, including the movement of DNA between organisms and the ways such transfers can influence evolution. The team analyzed chromatophore and mitochondrial genomes and found broadly conserved gene content alongside structural differences, including genome rearrangements and inversion events. Their phylogenetic analyses also produced differences between evolutionary trees based on nuclear and organelle data. The researchers said those discrepancies could be related to substitution saturation, limited taxon sampling and different evolutionary signals among genetic regions.
The findings were published on September 4, 2026, in the Journal of Phycology in a paper titled “Crawling under the radar: Two novel Paulinella species expand knowledge about the ecology and evolution of a primary plastid-containing amoeba lineage.” The researchers said the North Carolina site could serve as a useful location for future studies of Paulinella ecology, population genetics and evolution. For now, the record shows something simple and stubborn: a motel room, a roadside marsh, and a handful of improvised tools were enough to expose life the official apparatus hadn’t bothered to notice.