اكتشافات الحبار العملاق تكشف عن عالم بحري خفي قبالة سواحل أستراليا

14 مايو، 2026

من إعداد الذكاء الاصطناعي

كشف علماء عن أدلة على وجود حبار عملاق ومئات الأنواع الأخرى في أعماق الأخاديد البحرية قبالة غرب أستراليا. جاءت هذه النتائج من بعثة استخدمت تحليل الحمض النووي البيئي لاستكشاف أعماق تتجاوز 4 كيلومترات.

قاد باحثون من جامعة كيرتن الدراسة على متن سفينة الأبحاث R/V Falkor التابعة لمعهد شميدت للمحيطات. حيث جمعوا أكثر من 1,000 عينة مياه من أخاديد كيب رينج وكلوتس، على بعد حوالي 1,200 كيلومتر شمال بيرث بالقرب من ساحل نينجولو. حدد التحليل 226 نوعاً عبر 11 مجموعة حيوانية، بما في ذلك العديد من الأنواع التي لم يتم تسجيلها من قبل في المياه الأسترالية الغربية.

Mother and daughter discover world's largest coral colony on Great Barrier Reef

27 فبراير، 2026 من إعداد الذكاء الاصطناعي صورة مولدة بواسطة الذكاء الاصطناعي

A mother-and-daughter duo of citizen scientists has uncovered the largest known coral colony on Australia's Great Barrier Reef, measuring 111 meters across and covering nearly 4,000 square meters. The J-shaped formation of Pavona clavus was found during a dive as part of the Great Reef Census initiative. Advanced 3D modeling confirmed its size, highlighting the role of community involvement in marine conservation.

Study uncovers squid survival during Earth's mass extinction

Researchers at the Okinawa Institute of Science and Technology have revealed how squid and cuttlefish survived the Cretaceous-Paleogene mass extinction by retreating to oxygen-rich deep-sea refuges. Their analysis of newly sequenced genomes shows these cephalopods originated in the deep ocean over 100 million years ago, followed by rapid diversification into shallow waters. The findings, published in Nature Ecology & Evolution, provide the first comprehensive evolutionary tree for decapodiform cephalopods.

Fossil jaws reveal giant ancient octopuses as apex predators

25 أبريل، 2026 من إعداد الذكاء الاصطناعي

Researchers have uncovered evidence that octopuses from the Late Cretaceous period, around 100 million years ago, grew to lengths of nearly 20 meters and hunted as top predators. The findings, based on well-preserved fossil jaws from Japan and Vancouver Island, challenge previous views of early octopus evolution. Professor Yasuhiro Iba of Hokkaido University led the study, published in Science on April 23.

البيئة

Lost fossils reveal diverse marine predators after Permian extinction

علم

Dinosaur tracks from 132 million years ago discovered near Knysna

علم

James Webb telescope discovers distant jellyfish galaxy

Scientists uncover million-year-old fossils in New Zealand cave

Researchers from Australia and New Zealand have discovered fossils from 16 species, including a new ancestor of the kākāpō parrot, in a cave near Waitomo on the North Island. The remains, dating back about one million years, reveal waves of extinction driven by volcanic eruptions and climate shifts long before human arrival. The find fills a major gap in the country's fossil record.

Brazil fossil reanalysis challenges early animal origins

12 مايو، 2026 من إعداد الذكاء الاصطناعي

Scientists have determined that structures once seen as traces of tiny animals in 540-million-year-old Brazilian rocks are actually fossilized communities of bacteria and algae. The reexamination uses advanced imaging to reveal preserved cells and organic material.

Scientists uncover hidden species in Borneo's fanged frogs

Researchers have found that Borneo's fanged frogs, long considered a single species, actually comprise several distinct genetic groups. Genetic analysis suggests around six or seven species rather than the up to 18 previously proposed. This discovery highlights the challenges in defining species boundaries for conservation efforts.

Scientists warn US actions accelerate Pacific coral reef collapse

26 فبراير، 2026 من إعداد الذكاء الاصطناعي

A team of international researchers has accused the US government of hastening the collapse of coral reefs around Guam through military expansions and proposed rollbacks to the Endangered Species Act. In a letter published in Science this month, they highlight how national security priorities are overriding conservation efforts. Without changes, these reefs face functional extinction similar to those in Florida.

01 مايو 2026 09:30

اكتشافات الحبار العملاق تكشف عن عالم بحري خفي قبالة سواحل أستراليا

مقالات ذات صلة

Mother and daughter discover world's largest coral colony on Great Barrier Reef

Study uncovers squid survival during Earth's mass extinction

Fossil jaws reveal giant ancient octopuses as apex predators

Lost fossils reveal diverse marine predators after Permian extinction

Dinosaur tracks from 132 million years ago discovered near Knysna

James Webb telescope discovers distant jellyfish galaxy

Scientists uncover million-year-old fossils in New Zealand cave

Brazil fossil reanalysis challenges early animal origins

Scientists uncover hidden species in Borneo's fanged frogs

Scientists warn US actions accelerate Pacific coral reef collapse

Paleontologists discover 275-million-year-old twisted-jaw species

Scientists solve mystery of golden orb found deep in Gulf of Alaska

China tests deep-sea cable cutter at 3,500 meters

DNA study supports human arrival in Australia 60,000 years ago

Scientists identify 24 new deep-sea amphipod species

Sperm whale guided back to deeper waters in Sultan Kudarat

Two marsupials thought extinct for 6000 years found alive

Study suggests two cryptic species hide for every known vertebrate

Mother and daughter discover largest coral colony on Great Barrier Reef

Mantle plume shaped massive Atlantic underwater canyon

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