Vestígios de lulas-gigantes revelam mundo marinho oculto na Austrália

14 de maio de 2026

Reportado por IA

Cientistas descobriram evidências de lulas-gigantes e centenas de outras espécies em cânions submarinos profundos na costa da Austrália Ocidental. As descobertas são fruto de uma expedição que utilizou a análise de DNA ambiental para explorar profundidades superiores a 4 quilômetros.

Pesquisadores da Universidade de Curtin lideraram o estudo a bordo do navio de pesquisa R/V Falkor, do Schmidt Ocean Institute. Eles coletaram mais de 1.000 amostras de água dos cânions de Cape Range e Cloates, cerca de 1.200 quilômetros ao norte de Perth, perto da costa de Nyinggulu. A análise identificou 226 espécies em 11 grupos animais, incluindo várias nunca antes registradas nas águas da Austrália Ocidental.

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

27 de fevereiro de 2026 Reportado por IA Imagem gerada por IA

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 de abril de 2026 Reportado por IA

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.

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Scientists warn US actions accelerate Pacific coral reef collapse

26 de fevereiro de 2026 Reportado por IA

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.

sexta-feira, 01 de maio de 2026, 09:30h

Vestígios de lulas-gigantes revelam mundo marinho oculto na Austrália

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