Science Daily

• Scared of spiders? Scientists say the real nightmare is losing them

  Spiders and insects may not be fan favorites, but they are vital to the health of ecosystems—and scientists barely know how they’re doing. Researchers found that nearly 90% of North America’s insect and arachnid species have no conservation status, leaving their fate largely unknown. Even more striking, most states don’t protect a single arachnid species. The study warns that these overlooked creatures are essential to planetary health and urgently need better monitoring and protection.

• A donut-shaped protein breaks apart to start bacterial cell division

  Researchers have revealed how bacteria precisely control the genes that trigger cell division. The study shows that the MraZ protein, which normally forms a donut-shaped structure, must bend and partially break apart to bind key DNA sequences that activate division genes. Using cryo-electron microscopy, scientists captured this interaction in remarkable detail. The mechanism appears to be widespread across bacteria, offering a new window into how microbes regulate growth.

• Scientists discover giant swirling plumes hidden deep inside Greenland’s ice sheet

  Scientists may have finally solved the mystery of strange plume-like structures hidden deep inside the Greenland ice sheet. New research suggests they form through thermal convection—slow, swirling motions driven by temperature differences inside the ice. This means the deep ice could be far softer than scientists once believed. Understanding this hidden movement could improve predictions about how Greenland’s ice sheet behaves in a warming world.

• Scientists discover ancient DNA “switches” hidden in plants for 400 million years

  Scientists have uncovered an enormous hidden archive of plant DNA that has endured for more than 400 million years. By comparing hundreds of plant genomes, researchers identified more than 2.3 million regulatory DNA sequences that act like genetic switches, controlling when and how genes are activated. These sequences, known as conserved non-coding sequences (CNSs), were detected using a new computational tool called Conservatory.

• Scientists warn Australia’s “zombie tree” could vanish within a generation

  A newly identified Australian tree has been dubbed the “zombie” tree because it’s alive but unable to reproduce. Myrtle rust repeatedly kills its young growth, stopping the species from flowering or making seeds. Scientists are scrambling to grow disease-free seedlings in protected locations. Their hope is that a future generation may evolve resistance and bring the species back from the brink.