Science Daily

• 18th-century mechanical volcano roars to life 250 years later

  A centuries-old vision of a mechanical volcano has finally erupted into reality, as two University of Melbourne engineering students recreated a design first imagined in 1775 by volcanology enthusiast Sir William Hamilton. Drawing from an 18th-century watercolor and a preserved sketch, they used modern tools like LED lighting and electronic systems to simulate the glowing flows and explosive drama of Mount Vesuvius.

• The “big one” might not come alone: Double West Coast earthquake threat

  Two of the most dangerous fault systems on the U.S. West Coast may be more connected than scientists once thought. New research suggests the Cascadia subduction zone and the San Andreas fault can “sync up,” triggering earthquakes within minutes or hours of each other. This rare “synchronization” could dramatically increase the scale of a major West Coast disaster. Instead of one massive quake, multiple regions could be hit at nearly the same time.

• This 275-million-year-old animal had a twisted jaw like nothing alive today

  Deep in a dried-up riverbed in Brazil, scientists uncovered a bizarre prehistoric mystery—twisted jawbones from a strange, long-lost animal unlike anything seen before. Dating back 275 million years, this creature, named Tanyka amnicola, belonged to an ancient lineage that should have already faded away, making it a kind of “living fossil” of its time.

• This “Pink Floyd” spider hunts prey 6x its size and lives in walls

  Scientists have uncovered a tiny wall-dwelling spider named Pikelinia floydmuraria, inspired by Pink Floyd. Despite its size, it’s a fierce predator that hunts ants much larger than itself and helps reduce common urban pests like mosquitoes and flies. Its clever strategy of building webs near lights makes it especially effective. The discovery also raises new questions about its mysterious link to similar spiders in the Galápagos.

• Why do crabs walk sideways? Scientists trace it back 200 million years

  Crabs’ famous sideways walk may trace back to a single evolutionary moment 200 million years ago. Researchers found that most modern crabs inherited this trait from one ancestor—and never looked back. The movement likely gave them an edge, helping them dodge predators with quick, unpredictable bursts. It’s a rare example of a behavior evolving once and then dominating an entire group.