Garfield, star of the eponymous comic strip created by Jim Davis in 1978, is, like many of the cats that roam our homes, orange. He is orange in the same way that some people are redheaded, some horses are brown, or some dogs are Irish setters, but there is one important difference.

Researchers have identified the first mouse strain that is susceptible to severe COVID-19 without the need for genetic modification. This development marks a pivotal step forward in infectious disease research, providing an essential tool to develop vaccines and therapeutics for future coronavirus variants and potential pandemics.

Non-native species introduced by humans are among the main causes of global species decline—they were partly responsible for 60% of the species that have become extinct worldwide in recent decades. Non-native mammals in Central Europe include species such as the brown rat, the mouflon and the mink.

Researchers have revealed a new mechanism underlying how spatial distance between specific regions of DNA is linked to bursts of gene activity. Using advanced cell imaging techniques and computer modeling, the researchers showed that the folding and movement of DNA, as well as the accumulation of certain proteins, changes depending on whether a gene is active or inactive.

Parenting can be tough, even for the young and energetic, but one elderly albatross is about to go through it all again—at the ripe old (and apparently record-setting) age of 74.

Major findings on the inner workings of a brittle star's ability to reversibly control the pliability of its tissues will help researchers solve the puzzle of mutable collagenous tissue (MCT) and potentially inspire new "smart" biomaterials for human health applications.

The ocean naturally absorbs a quarter to a third of man-made CO2 emissions, but this process also leads to the acidification of seawater. By increasing the alkalinity of seawater through the addition of certain minerals (e.g., carbonates and silicates), the ocean can chemically bind more CO2 without further acidification.

Silje Halvorsen bends down and fills a plastic bottle with water from Gillsvannet lake, a sheltered bathing spot just outside the center of Kristiansand.

Researchers from the University of Jena and the Leibniz Institutes in Jena have published new findings on the adaptability of the microalgae Chlamydomonas reinhardtii. The interdisciplinary study, largely carried out by scientists from the Cluster of Excellence Balance of the Microverse, shows how the tiny green alga can adapt its shape and metabolism under natural conditions without changing its genome.

Researchers at Kyushu University have revealed how spatial distance between specific regions of DNA is linked to bursts of gene activity. Using advanced cell imaging techniques and computer modeling, the researchers showed that the folding and movement of DNA, as well as the accumulation of certain proteins, changes depending on whether a gene is active or inactive.

Forest ecosystems of the future will have to cope with very different conditions to those of today. For this reason, researchers at the Technical University of Munich (TUM) state that a strategic approach to forest management is crucial. To this end, the research team has developed iLand: a simulation model that can compute long-term developments of large forest landscapes, right down to the individual tree—including disturbances from bark beetles to wildfires.

Desert ants of the Cataglyphis nodus species use the Earth's magnetic field for spatial orientation, but these tiny insects rely on a different component of the field than other insects, a research team led by Dr. Pauline Fleischmann from the University of Oldenburg, Germany, reports in the journal Current Biology.

Lepidopterans (butterflies and moths) exhibit a splendid diversity of wing color patterns, and many species display black and white, or dark and bright, wing color pattern variants associated with the presence and absence of melanin. Many of these wing color pattern variants are textbook examples of natural selection and evolution.

A newly developed luciferase-based reporter can detect problems in protein translocation and disulfide bond formation in the endoplasmic reticulum (ER), as reported by researchers at Science Tokyo. Inspired by natural mechanisms found in bacteria, this reporter offers a simple and robust tool for studying ER-related protein synthesis processes, with potential applications in understanding diseases and developing new treatments.

BK polyomavirus, or BKPyV, is a major cause of kidney transplant failure. There are no effective drugs to treat BKPyV. Research at the University of Alabama at Birmingham reveals new aspects of BKPyV replication, offering possible drug targets to protect transplanted kidneys.

Scientists have used 3D-printed components to create a robotic instrument that can autonomously monitor the earliest stages of development in any aquatic species. The LabEmbryoCam has been created over the past decade by biologists and technologists from the EmbryoPhenomics research group at the University of Plymouth.