Reference Terms
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Growth ring
Growth rings (or "tree rings" or "annular rings") can be seen in a horizontal cross section cut through the trunk of a tree. Visible rings result from the change in growth speed through the seasons of the year, thus one ring usually marks the passage of one year in the life of the tree.
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Plants & Animals News
November 3, 2025
Nov. 3, 2025 — Scientists uncovered how the amino acid leucine enhances mitochondrial efficiency by preserving crucial proteins that drive energy production. By downregulating the protein SEL1L, leucine prevents unnecessary degradation and strengthens the cell’s ...
Nov. 3, 2025 — Penn State scientists uncovered an ancient bacterial defense where dormant viral DNA helps bacteria fight new viral threats. The enzyme PinQ flips bacterial genes to create protective proteins that block infection. Understanding this mechanism could ...
Nov. 2, 2025 — UC Davis scientists uncovered Aptostichus ramirezae, a new trapdoor spider species living under California’s dunes. Genetic analysis revealed it was distinct from its close relative, Aptostichus simus. The species was named after pioneering ...
Nov. 2, 2025 — Earth’s climate balance isn’t just governed by the slow weathering of silicate rocks, which capture carbon and stabilize temperature over eons. New research reveals that biological and oceanic feedback loops—especially involving algae, ...
Nov. 2, 2025 — A pandemic-era breakthrough has allowed scientists to literally expand our view of plankton. By using ultrastructure expansion microscopy, researchers visualized the inner workings of hundreds of marine species for the first time. The effort, tied ...
Nov. 2, 2025 — Researchers discovered that soil microbes in Kansas carry drought “memories” that affect how plants grow and survive. Native plants showed stronger responses to these microbial legacies than crops like corn, hinting at co-evolution over time. ...
Oct. 30, 2025 — From mini-brains to spider-inspired gloves and wolf apple coatings, scientists are turning eerie-sounding experiments into real innovations that could revolutionize health and sustainability. Lab-grown brain organoids may replace animal testing, ...
Oct. 29, 2025 — Researchers at QUT uncovered how corals reattach to reefs through a three-phase process involving tissue transformation, anchoring, and skeleton formation. Differences among species reveal why some corals grow and attach faster than others. ...
Oct. 29, 2025 — Beneath the ice of Antarctica’s Weddell Sea, scientists discovered a vast, organized city of fish nests revealed after the colossal A68 iceberg broke away. Using robotic explorers, they found over ...
Oct. 28, 2025 — An international team of researchers led by scientists from the Max Planck Institute for Evolutionary Anthropology in Leipzig, working with 15 collaborators around the world, has conducted the most comprehensive study yet of lifespan differences ...
Oct. 27, 2025 — Extinction rates are not spiraling upward as many believe, according to a large-scale study analyzing 500 years of data. Researchers found that species losses peaked about a century ago and have decreased since, with different drivers shaping past ...
Oct. 27, 2025 — A team of researchers has developed a floral-scented fungus that tricks mosquitoes into approaching and dying. The fungus emits longifolene, a natural scent that irresistibly draws them in. It’s harmless to humans, inexpensive to produce, and ...
Latest Headlines
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Nov. 3, 2025 — In the Gulf of California, a pod of orcas known as Moctezuma’s pod has developed a chillingly precise technique for hunting young great white sharks — flipping them upside down to paralyze and ...
Nov. 3, 2025 — Researchers at UC San Diego have figured out how to get bacteria to produce xanthommatin, the pigment that lets octopuses and squids camouflage. By linking the pigment’s production to bacterial ...
Nov. 2, 2025 — On the Canary Islands, scientists discovered that the spider Dysdera tilosensis has halved its genome size in just a few million years—defying traditional evolutionary theories that predict larger, ...
Nov. 2, 2025 — Scientists are revolutionizing how new marine species are described through the Ocean Species Discoveries initiative. Using advanced lab techniques, researchers recently unveiled 14 new species from ...
Nov. 2, 2025 — The debate over Nanotyrannus’ identity is finally over. A remarkably preserved fossil proves it was a mature species, not a teenage T. rex. This discovery rewrites how scientists understand ...
Nov. 2, 2025 — After decades of mystery, scientists have finally proven that Europe’s largest bat, the greater noctule, hunts and eats small songbirds mid-air—more than a kilometer above ground. Using tiny ...
Nov. 1, 2025 — For decades, Paranthropus robustus has intrigued scientists as a powerful, big-jawed cousin of early humans. Now, thanks to ancient protein analysis, researchers have cracked open new secrets hidden ...
Nov. 1, 2025 — Scientists in Japan have discovered Physalia mikazuki, a previously unknown species of Portuguese man-of-war, in northern waters for the first time. DNA and anatomical analysis confirmed it as ...
Nov. 1, 2025 — Fringe-lipped bats from Panama hunt like miniature lions, using a “hang-and-wait” strategy to capture large, energy-rich prey. High-tech biologging revealed they spend most of their time ...
Oct. 31, 2025 — Researchers have uncovered dozens of long-misidentified coelacanth fossils in British museums, some overlooked for more than a century. The study reveals that these ancient “living fossils” ...