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Bugün yeryüzünde sürünen trilyonlarca karınca dolaşıyor olabili, ancak Kretase dönemine ait soyu tükenmiş "cehennem karıncaları"nın vahşetiyle azı yarışabilir. Haidomyrmecinae alt familyasına mensup bu karıncaların tıpkı çim biçmek için kullanılan veya Azrail kostümünün ayrılmaz bir parçası olan orağa benzeyen son derece özelleşmiş çeneleri bulunuyordu. Uzmanlar, bu [...]

Brezilya'nın Piauí eyaletinde, Caatinga adı verilen yarı kurak biyomda bulunan Serra da Capivara Ulusal Parkı'ndaki kapuçin maymunları (Sapajus libidinosus) üzerinde yapılan ve PNAS dergisinde yayınlanan bir araştırma, hoşgörünün sosyal öğrenme için son derece önemli olduğunu ve aynı grubun diğer üyelerini gözlemleyerek kazanıldığını gösteriyor.[1] São Paulo Üniversitesi (USP) ve [...]

Yaklaşık 66 milyon yıl önce dinozorları yok eden asteroid, karıncaların mantar yetiştirerek ‘tarım’ yapmaya başlamasına yol açmış olabilir. Dinozorları yok eden olay tamamen kötü sonuçlar doğurmadı. Yaklaşık 66 milyon yıl önce meydana gelen meteor çarpmasının neden olduğu düşük ışık ortamı, o dönemde bol miktarda bulunan organik maddeyle beslenen mantarların yayılmasını teşvik etti; [...]

By Sandee LaMotte, CNN (CNN) — Tiny plastic shards and fibers were found in the nose tissue of human cadavers, according to a small new study. The threads and microplastic pieces were discovered in the olfactory bulb, the part of the nose responsible for detecting odors that sits at the base of the brain. “Once present in this structure, there can be translocation to other regions of the brain,” said lead study author Luís Fernando Amato-Lourenço, a [...]

Canada’s “record-shattering” wildfires last year produced nearly as much greenhouse gas emissions in one season as would be expected over a decade of fires in normal circumstances, data has shown. The fires, in Canada’s “wildest season ever”, were made at least three times more likely by the climate crisis, and produced about 2bn tonnes of CO2, about a quarter of the total global emissions from wildfires last year, according to data in the State of [...]

A Brazilian biologist who wanted to find out when and why poisonous snakes bite chose an unusual method to research the topic — by stepping on or near the dangerous animals tens of thousands of times. Joao Miguel Alves-Nunes from the Butantan Institute used jararacas — a highly venomous viper occurring across South America that is responsible for biting some 20,000 people per year — for his research. The results gleaned from this risky endeavor in the name of science, [...]

Authors of study call for action to prevent possible collapse of region’s ecosystems and climate impacts that would result Swathes of the Amazon face pressures that could lead to a “tipping point” by 2050, prompting large-scale collapse of the key forest systems, scientists have warned. A study published in the journal Nature found that by the middle of the century, 10% to 47% of Amazonian forests will be threatened by a combination of impacts including global warming, [...]

Nicknamed the “Earth’s lungs” for its dense oxygen producing forests, the Amazon can absorb 132 billion tons of the planet’s carbon. However, more than 30,000 square miles of the Amazon have been lost since the 1970s. Deforestation, clearing land for agriculture, and climate change fueled wildfires have severely taken its toll on the region, where about 10,000 acres of forest (almost the size of California) has been destroyed every day since 1988. However, there is [...]

TRINDADE ISLAND, Brazil : The geology of Brazil's volcanic Trindade Island has fascinated scientists for years, but the discovery of rocks made from plastic debris in this remote turtle refuge is sparking alarm. Melted plastic has become intertwined with rocks on the island, located 1,140 km (708 miles) from the southeastern state of Espirito Santo, which researchers say is evidence of humans' growing influence over the earth's geological cycles. "This is new and [...]