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Digital Natural Archive(DNA) Nature news, research, discoveries, facts and stories in different biological epochs, developments in the field of biology conducted by scientists from all over the world. Humor
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🦦 Beavers are super parents: carry their babies in their paws like humans!

Did you know that beavers carry their cubs as if in a hug? 🥰 Beaver cubs are born with open eyes and thick fur, ready to swim. But even these independent babies need care!

👉 Check out this cutest video of a mom beaver showing touching care. And these “nature engineers” are also saving ecosystems by creating dams and restoring forests
#facts #animals #mammals
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🌿 A new plant species has been discovered in China!
Scientists have described Aristolochia geantha, a unique liana from the Circazon family found in Yunnan province.
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Here's what makes it special:
▪️ Unusual flowers: flat calyxes with golden hairs and a pink-beige throat.
▪️ Rare growth: flowers bloom on the ground rather than on stems, which is not found in other species.
▪️ Endemic: grows only in karst mountains at 1300-1500 m altitude.

Why it's important.
🔍 The species is easily confused with A. petelotii, but genetic and morphological differences have confirmed its uniqueness.
⚠️ Endangered: less than 50 mature plants found! Populations are suffering from agriculture and collection in traditional medicine.

🌐 Call for conservation
Scientists propose listing the species under the CR (Critically Endangered) category of the Intergovernmental Union for Conservation of Nature and establishing protected areas.
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The article was published in the journal Taiwania. DOI: 10.6165/tai.2025.70.293.
#facts #plants #perennials
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🦟 Jurassic scorpionesses: how males 'showed off' to females 165 million years ago
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Scientists have discovered an amazing feature in scorpionfish fossils from China! Examining fossils 165 million years old, they found that males of two families (Orthophlebiidae and Holcorpidae) had strongly enlarged first segments of their hind legs - like balls! This trait is only found in males, indicating sexual dimorphism.

⚠️Why is this important?
🟣 The enlarged segments probably played a role in mating rituals:
🟣 May have served as a “visual cue” to attract females.
🟣 Or helped hide a “wedding gift” (such as food), as in modern scorpionesses.

➡️ Interesting details
Analysis of 87 fossils showed that the degree of “bloating” of the penises varied from species to species - it's like an evolutionary imprint!
The scientists compared the structures with insects living today: for example, the enlarged legs of the toad flies are also used in courtship.

A Jurassic mystery
These scorpionflies lived in the age of the dinosaurs, but their complex mating rituals resemble the behavior of modern insects. How did they transmit signals? Were their “gifts” edible? For now, the answers remain a mystery!

Bottom line: The discovery not only expands knowledge of ancient ecosystems, but also shows that love games are an eternal theme in evolution!
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The paper was published in the journal BMC Ecology and Evolution. DOI: 10.1186/s12862-021-01771-3.
#fossils #animals #insects
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🔍 New species of cave pseudoscorpions found in China! 🦂
Scientists from China have discovered three new species of cave pseudoscorpions of the genus Tyrannochthonius in the karst caves of Guangxi!
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Pseudoscorpions, unlike their scorpion relatives, lack a long tail with a venomous stinger!

👉 What is known:
T. rudongyanensis, T. tiani and T. yanwuensis are tiny predators adapted to life in total darkness. They have no eyes, but long limbs and unique claws with microscopic teeth!
Found under rocks and in clay sediments. 🌱
These species differ from their relatives in the structure of the claws, number of bristles and special sensory hairs.

🗺️ Previously only one species was known in Guangxi, now there are four! This is an important step in studying the biodiversity of China's karst regions, which are home to dozens of endemic species.
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📝 The study is published in the journal Subterranean Biology. DOI: 10.3897/subtbiol.51.146465.
#appears #animals #spiders #spiders
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🦑 First ever footage of a live Antarctic giant squid!
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Scientists at the Schmidt Institute have made a sensation! In March 2025, for the first time they managed to film a live baby Antarctic giant squid (Mesonychoteuthis hamiltoni) in its natural environment - in the waters off the South Sandwich Islands.

👉 Why is this important?
🟠 This giant is the heaviest invertebrate on the planet (up to 14 meters long and 700 kg!).
🟠 Until now, they have only been studied from remains in whale stomachs or caught by fishermen.
🟠 Young individuals are transparent, but lose this feature as they age.

🅰️ How did this happen?
The SuBastian deep-sea vehicle captured the 30-centimeter squid at a depth of 600 meters. And back in January, the same team recorded the first video of a glass squid (Galiteuthis glacialis) off the coast of Antarctica!

🔬 Scientific details:
The distinguishing feature of colossal squid is the hooks on the tentacles.
Both species are transparent when young and have sharp hooks at the ends of their tentacles.

💬 Scientists' quotes:
“It's incredible to see them living without knowing we exist!” - Dr. Kat Bolstad.
“Two unique discoveries in a row show how little we know about the ocean” - Dr. Jyotika Virmani.
👌 Why it's inspiring.
Technologies like teleconferencing allow scientists from around the world to participate in research right from land. And high-quality footage helps to accurately identify species!
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Information according to: schmidtocean.org.
#news #animals #mammals
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📱 The Tiger Ambystoma is a unique amphibian: its larvae (axolotl) can reproduce without becoming an adult form (neotenia)!

🟠 Adult amphibian size: Up to 38 cm, with brightly colored spots or stripes. Albinos (white with red gills) are popular in aquariums!
🟠 Survival secret: Larvae mature quickly in warm water bodies, in cold ones they remain eternal “children”.
🟠 Threatened: Populations are declining, the species is protected in the US.

👀 Interesting
Axolotls feed on infusoria and their eggs take up to 50 days to develop. Nature is an adaptation genius!
#facts #animals #amphibians
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🤧 NITROGEN FERTILIZERS: AN INVISIBLE THREAT FOR ALLERGY SUFFERERS?
Belgian scientists have proven for the first time that nitrogen fertilizers not only “feed” plants, but also... increase allergies in people!
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❗️ The study found:
🟠 Fertilized meadows produce 6.2 times more pollen (3.6 mg/m² vs. 0.6 mg/m²).
🟠 The allergenicity of such pollen is 5 times higher! The immune cells (basophils) react more aggressively to it.

Why does this happen?
Nitrogen stimulates plant growth and increases the proportion of pollen-bearing grasses (e.g. foxtail).
High nitrogen concentration changes the biochemistry of pollen, making it “more aggressive” to the immune system.

📌 What does this mean for us?
🟠 Increase in allergies: rhinitis, asthma, conjunctivitis may become more frequent.
🟠 Ecology and agriculture: fertilizers save crops but harm health and biodiversity.

🚀 What to do?
Scientists are calling for a rethink of farming: seeking a balance between productivity and ecology.
To each of us - stay tuned and support initiatives to reduce chemicals.

⚡️ Interesting fact:
Nitrogen emissions from fuels used to be considered the main “enemy,” but fertilizers have proven to be more dangerous!

Conclusion
Nature reminds us: even well-intentioned goals (to increase yields) can have unintended consequences. Let's be more attentive to the planet - for the sake of ourselves and future generations!
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Article published in The Lancet Planetary (April 2025).
#news #environment #plants
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🦖 Tyrannosaurs in captivity in private collections: is science losing out?
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American paleontologist Thomas Carr sounds the alarm: 57% of T. rex bones belong to private collections and are unavailable for research! Of the 141 specimens found, only 9 have made it to museums, the rest have been sold for millions of dollars.

Why is this a disaster?
🟠 Young specimens under lock and key: 14 bones of young Terex - the key to studying their growth - are kept by collectors.
🟠 Data loss: When sold, information about the find site, age of the specimen and its environment disappears.
🟠 Failure to test hypotheses: Scientists cannot confirm sexual dimorphism due to small sample size.

The numbers are shocking:
The average price of a T. rex skeleton is $10.8 million!
Black diggers have found more bones in 30 years than scientists have found in 132 years!

Examples of disaster:
A skeleton in a Hong Kong mall instead of a museum.
Specimens are being removed from the US, denying science access to actual material.

✔️ What are the dangers of commercial finds?
Even if a museum buys the bones, their scientific value is questionable - there is no definitive provenance data. And 80% of “private” thyrexes are just the tip of the iceberg: the market is shrouded in mystery.

Conclusion:
Every bone sold is a blow to paleontology. Without access to specimens, we lose the chance to unlock the mysteries of the most famous dinosaurs!
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The article was published in the journal Palaeontologia Electronica. DOI: 10.26879/1337.
#fossils #animals #dinosaurs
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I don't know whether to open it or not! Unexpected guests somewhere in Florida!
#humor #animals #reptiles
🌌 Life on a sub-neptune? “James Webb” shocks science again!
The telescope has detected dimethyl sulfide and dimethyl disulfide in the atmosphere of planet K2-18b.
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On Earth, these compounds are produced by algae! But how did they survive on a planet where the temperature is probably above the boiling point of water? 🪐

🔍 Key facts:
Where is it located. 124 light-years from Earth.

Planet characteristics:
2.6 times the size of Earth, 8.6 times the mass.
Atmosphere thousands of times denser than ours (6.2% of the planet's mass!).
Hypothetical ocean under the hydrogen shell is a “hykean”.
Concentration of “biomarkers”: 10,000 times higher than Earth's seas!

Why is this controversial?
Greenhouse effect: K2-18b's atmosphere can heat the planet to extreme temperatures.

Abiogenic processes: Scientists don't rule out compounds forming without the involvement of life.

Oxygen issue: A hydrogen atmosphere prevents the buildup of oxygen, which breaks down dimethyl sulfide on Earth.

🌟 What do scientists say?
“The ocean teeming with life scenario best explains the findings,” Nikku Madhusudhan, an astronomer at Cambridge.
But so far it's not proof - just the “most reliable indications” in the history of the search!

❗️ Why it matters.
If life exists under these conditions, it will overturn our ideas about its capabilities.

K2-18b is a unique laboratory example for studying exoplanets.

✔️ The big question:
Life or unknown chemistry? Only new research will answer!
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The paper was published in The Astrophysical Journal Letters. DOI: 10.3847/2041-8213/adc1c8.
#news #biocosmos
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🦋 A new species of butterfly has been discovered! Unique discovery in the mountains of Canada
Scientists from the University of Alberta (Canada) have discovered a species of butterfly unknown to science - Satyrium curiosolus! These insects have lived in complete isolation in the mountains of Waterton Lakes National Park for tens of thousands of years, and only now genetics has revealed their secret!
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🔍 What makes them special?
🔽 40,000 years of isolation: The population separated from relatives during the Ice Age and has evolved on its own ever since!
🔽 Exclusive diet: Only eat silver lupine (unlike relatives S. semiluna, which eat silky lupine).
🔽 Symbiosis with ants: The caterpillars are “friends” with Lasius ponderosa ants - they protect them from enemies in exchange for sweet “nectar”!

⚠️ Why are they under threat?
⚫️ Small population: Only about 500 individuals.
⚫️ Inbreeding: Low genetic diversity due to isolation.
⚫️ Fragile ecosystem: Dependence on lupine and ants makes the species vulnerable to climate change.

⚡️ Why it matters.
The discovery of S. curiosolus is a reminder that even well-studied regions hide “invisible” species! Genetic analysis has become key, which means:
🟡 Science can find and save rare species before they become extinct!
🟡 New strategies are needed to protect unique ecosystems like Canada's mountain prairies.

Interesting fact:
Butterfly “relatives” (S. semiluna) cooperate with other ants, Formica and Camponotus. Evolution is a real artist!

💬 Did you know that 15-20 thousand new species are still being discovered on Earth every year?
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The study is published in the journal ZooKeys. DOI: 10.3897/zookeys.1234.143893.
#news #animals #insects
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