Stonehenge’s Altar Stone originated hundreds of kilometers away in Scotland, researchers report in Nature

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#Stonehenge #AltarStone #Scotland #Research #Nature

Using X-ray video, scientists have discovered that baby Japanese eels slither backwards out of the stomachs of predatory dark sleeper fish after being swallowed, and slip away through the gill slits to freedom.

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#science #marinebiology #nature #predatorprey #wildlifebiology

Medicinal tree successfully grown from 1,000-year-old seed found in cave.

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#MedicinalTree #AncientSeed #CaveDiscovery #BotanicalMiracle #Nature'sWonder

🐝 Queen bumblebees have less efficient tongues for nectar collection than worker bees, a new study in Proceedings of the National Academy of Sciences reveals.

🌸 Despite having longer tongues (4-10 mm), queen bumblebees have sparser hairs on them, making them less effective at trapping nectar compared to the more heavily-haired tongues of worker bees.

🔬 Researchers used scanning electron microscopy and high-speed video to observe buff-tailed bumblebees (Bombus terrestris), finding queens' tongues are less efficient at capturing liquid.

#Bees #Science #Nature

🐦 Sunbirds use unique suction to drink nectar, a novel vertebrate mechanism. Unlike hummingbirds' sponging technique, sunbirds create an airtight seal with their tongue and beak to slurp liquid, a process observed with high-speed cameras and CT scans.

🔬 This discovery highlights convergent evolution: different species solving the same problem uniquely. Hummingbirds and sunbirds fill similar ecological roles as nectar eaters but employ distinct feeding methods.

🎓 Research led by UC Berkeley biologists, with findings published last month in Current Biology. Experiments involved 3D-printed artificial flowers in Africa and Indonesia, contributing to a deeper understanding of evolutionary adaptations.

#Science #Nature #Evolution

Monkeys in Gibraltar have started eating soil to help them digest tourists' high-calorie junk food

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#ScienceNews #Wildlife #Nature

🦂 Research confirms scorpions' pincers and stingers are laced with metals like zinc, manganese, and iron. These metals help them hunt and defend.

🔬 Scientists studied 18 scorpion species, finding unique metal configurations in different parts. Zinc is prevalent in stingers, while pincers often have zinc or a zinc-iron mix.

⚙️ Surprisingly, weaker pincers had more zinc for wear resistance, while stronger pincers had less, indicating an evolutionary trade-off.

#Scorpions #Science #Nature

🌕 New research reveals bull ants use an innate lunar compass for nighttime navigation, a behavior previously unknown.

⏰ Scientists discovered these ants employ "time compensation" to track the moon's position, similar to how early humans used the North Star.

🔬 Experiments showed that when deprived of light cues, ants deviated from their path, confirming the moon's crucial role in their navigation.

⭐ Bull ants combine their lunar navigation with terrestrial and solar cues, allowing them to navigate effectively even when moon visibility changes.

#AntScience #Nature #Discovery

🕷️ Daddy Longlegs Surprise: Researchers have documented daddy longlegs (harvestmen) preying on living frogs larger than themselves in South American rainforests, a behavior previously considered rare and anecdotal.

🍽️ Venom-Free Predation: These arachnids, lacking venom, appear to use powerful, spiny leg-like appendages (pedipalps) to grasp and immobilize their frog prey while still alive.

📸 Evidence from the Field: Four specific predation events were captured through photographic records by researchers studying species in the Cranaidae family of harvestmen, with observations spanning multiple tropical locations.

🐸 Conservation Insights: This discovery could have implications for conservation, particularly as one of the frog species involved is considered threatened, highlighting complex predator-prey dynamics in tropical ecosystems.

#Science #Nature #Biodiversity

🐦 Scientists have uncovered the core "motifs" that make up birdsong, finding 8 fundamental sound types (3 trills, 3 whistles, chaotic notes, harmonies) that combine to create diverse songs across 3,000 species.

🌳 The environment birds evolve in directly shapes their songs, with simpler motifs common in biodiverse tropical forests and more complex compositions in temperate regions.

🔊 Researchers used AI to analyze over 100,000 songs, revealing a underlying simplicity to the "spectacular diversity" and suggesting motifs could help understand bird adaptation to human-generated noise.

#Birdsong #Science #Nature

🤿 UBC researchers have discovered that deep-diving insect larvae in Lake Malawi possess sturdy air sacs, challenging the long-held belief that insects cannot survive in the open ocean due to pressure limitations.

🌊 Billions of lake fly larvae (Chaoborus edulis) undertake daily dives to over 200 meters to escape predators, rising at night to feed.

🔬 Dissection revealed these larvae use two pairs of tiny air sacs, functioning like ballast tanks, controlled by a material called resilin that expands or contracts with pH changes to regulate buoyancy.

💪 The larvae demonstrated remarkable toughness, enduring pressures equivalent to over 400 meters deep, far exceeding their daily dive depths.

#Science #Nature #Insects

🐜 New model suggests ant colonies synchronize after reaching a critical point, allowing any ant to trigger a widespread activity burst.

🐜 The synchronized action relies on ants being sensitive to social contagion and a rapid spread of activity from a single ant.

🐜 A key factor for sustained activity bursts is the dramatic difference in time scales between ant movement and behavioral transitions.

🐜 This mathematical model, published in PRX Life, is currently being tested with living ants to validate its predictions.

#Ants #Science #Nature

🦀 Land hermit crabs have been discovered as unlikely seed dispersers for a parasitic plant in southern Japan, carrying seeds on their claws and through their digestive systems.

📹 Time-lapse cameras revealed that hermit crabs, along with cockroaches, are primarily responsible for moving the seeds of the Balanophora fungosa plant, contradicting earlier assumptions that ants were the main culprits.

🔬 Researchers found that seeds carried externally on crabs had a 40% viability rate, while those passing through a crab's gut maintained a 21% viability rate.

#Science #Nature #HermitCrabs

🐦 A new study from the University of Surrey suggests that traffic noise is reducing the mood-boosting benefits of listening to birdsong. Even low levels of traffic sound negatively impact the positive psychological effects of nature's sounds.

❤️ Researchers found that birdsong alone offers psychological benefits, regardless of its acoustic qualities. However, the presence of traffic noise diminishes these benefits and can increase physiological stress, as indicated by lower heart rate variability.

🌳 The study involved over 1,500 participants and highlights the importance of protecting nature. It also suggests urban planning should consider minimizing traffic noise in green spaces to maximize their benefits.

#Birdsong #Nature #UrbanPlanning

🐦 A Virginia Tech-led study found that feeding and watching birds positively impacts people's well-being, with 95% of participants reporting a positive effect.

😊 Participants described feeling emotions like joy, gratitude, hope, and calm, with some finding it helped reduce stress and provided a positive focus during difficult times.

🧠 The activity also fostered engagement, sparking curiosity, holding attention, and helping people develop bird-identification skills.

🌳 Many participants reported a sense of meaning, feeling they were helping birds or contributing to science, and experiencing a stronger connection to nature.

#BirdWatching #MentalHealth #Nature

💈 A new study suggests butterfly wing patterns, similar to the barbershop pole illusion, can confuse predators' visual systems, making it difficult to accurately track speed and direction. This disruption helps butterflies evade birds and other attackers by interfering with their targeting systems in the critical milliseconds before capture.

🦋 Researchers are exploring how butterfly wing patterns might act as a form of "motion dazzle" camouflage, explaining why visually striking butterflies are often harder to catch mid-flight than more plainly colored moths.

💡 Butterfly wings are examples of structural color, where iridescent hues come from the arrangement of chitin scales (photonic crystals) rather than pigments, a phenomenon first documented in 1938 and captured on video for the first time in 2021 by MIT researchers.

#ButterflyScience #Nature #Wildlife