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Large megalodon was longer than a bus


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Artists impression of a megalodon hunting.

The reconstructed megalodon (Otodus megalodon) was 16 metres lengthy and weighed greater than 61 tons. It was estimated that it might swim at round 1.4 metres per second.Credit score: J.J. Giraldo

Megalodon shark was longer than a bus

A 3D mannequin of a colossal shark that roamed the oceans thousands and thousands of years in the past means that the beast was 16 metres lengthy and will have eaten a whale in only a few bites. Few megalodon fossils exist, however researchers had been in a position to create the digital mannequin utilizing a uncommon assortment of vertebrae and enamel, in addition to scans of contemporary nice white sharks (Carcharodon carcharias). They calculated that the traditional creature weighed round 70 tons — as a lot as ten elephants— and that its open jaw stretched to 2 metres huge.

The Guardian | 2 min learn

Reference: Science Advances paper

Options & opinion

The huge eruption of the Hunga Tonga–Hunga Ha‘apai volcano this January was the most important since Mount Pinatubo within the Philippines blew in 1991, and the most important explosion ever recorded by devices. Latest knowledge from ice cores recommend that the likelihood of an eruption with a magnitude 10 or 100 instances bigger than Tonga on this century is 1 in 6. Prior to now, eruptions of this dimension have brought about abrupt local weather change and the collapse of civilizations, but little funding has gone into making ready for such an occasion. Researchers Michael Cassidy and Lara Mani warn that extra analysis is required to establish dangers, monitor energetic volcanoes and construct resilience.

Nature | 10 min learn

When Kate Jones first held a tiny pipistrelle bat (Pipistrellus pipistrellus) whereas learning conservation as an undergraduate, it was love at first sight. The biodiversity researcher now makes use of city bat populations to research the interface between ecological and human well being. “Defending the pure setting whereas incorporating it into city areas is essential,” she says. “Ecologists and designers want to speak to one another concerning the design of our cities.”

Nature | 7 min learn

A community-led initiative in Peru’s Sacred Valley has created fire-prevention brigades, which goal to cease devastating wildfires earlier than they start by schooling and the supervision of managed burns. “Excessive Andean valleys are fragile ecosystems that don’t restore shortly. Hundreds of years’ value of topsoil may be washed away if it rains after a hearth,” says Joaquín Randall, who runs the programme alongside disaster-management officers and volunteers. “It’s a lot simpler to cease somebody lighting a match than to place out a 1,000-acre hearth.”

The Guardian | 5 min learn

Russia’s invasion of Ukraine in February has stirred European curiosity in ploughing more cash into defence analysis, after many years of being eclipsed by america within the subject of warfare innovation. Within the three months after the invasion, European nations introduced will increase of almost €200 billion to their defence budgets, and EU politicians introduced a flurry of methods to spice up the bloc’s mixed navy energy, together with guarantees to spend extra on the analysis and growth that may inventory the following era’s defence inventories, from drones to synthetic intelligence.

Nature | 7 min learn

Picture of the week

Galaxy NGC 7727’s spectacular galactic dance as seen by the VLT

Credit score: ESO

This spectacular cosmic collision — a merger of two galaxies that began round a billion years in the past — was captured by the Very Massive Telescope in Chile. At its centre lies the closest pair of supermassive black holes ever discovered, two objects which can be destined to coalesce into an much more large black gap.

QUOTE OF THE DAY

Palaeobiologist Emily Carlisle ponders a mysterious 500-million-year-old microscopic creature that has a mouth however no anus. (BBC Information | 4 min learn)

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