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Astronomy Apr 18, 2023

From platypus to parsecs and milliCrab: Why do astronomers use such weird units?

You may have heard about an asteroid set to fly near Earth that is the size of 18 platypus, or maybe the one that's the size of 33 armadillos, or even one the size of 22 tuna fish.

Ecology Apr 11, 2023

Canadian dire wolf fossil formally identified

A toothy grinned monster was lurking in the basement collection of a museum in Canada: The fossilized jaw of a beast that once roamed the bluffs along the South Saskatchewan River, competing with saber-toothed cats (Smilodon) ...

Plants & Animals Mar 27, 2023

I realized the fat-tailed dunnart was under threat. Here's how I got the species officially listed

Saving endangered species is an uphill battle in Australia, the mammal extinction capital of the world. But the first step, threatened species listing, can be confusing, tedious and time-consuming.

Astronomy Mar 23, 2023

Artificial intelligence discovers secret equation for 'weighing' galaxy clusters

Astrophysicists at the Institute for Advanced Study, the Flatiron Institute and their colleagues have leveraged artificial intelligence to uncover a better way to estimate the mass of colossal clusters of galaxies. The AI ...

Evolution Mar 22, 2023

Why do animals living with humans evolve such similar features? A new theory could explain 'domestication syndrome'

In the 19th century, Charles Darwin was one of the first to notice something interesting about domesticated animals: different species often developed similar changes when compared to their ancient wild ancestors.

Molecular & Computational biology Feb 28, 2023

Researchers find a path toward hepatitis E treatment by disentangling its knotty structure

In a paper published Feb. 28 in the journal eLife, a team of researchers headed by Princeton's Alexander Ploss settle a debate about a key protein in hepatitis E (Hep E), which could open the way to developing treatments ...

Plants & Animals Jan 31, 2023

How culling Australia's feral water buffalo could help tackle climate change

The world's largest wild population of water buffalo now roam Australia. As does the largest wild herd of camels. We have millions of feral goats and deer. For these introduced species, Australia is a paradise. Plenty of ...

Plants & Animals Jan 24, 2023

They're on the coat of arms but extinct in Tasmania: Rewilding with emus could be good for the island state's ecosystems

The emu is iconically Australian, appearing on cans, coins, cricket bats and our national coat of arms, as well as that of the Tasmanian capital, Hobart. However, most people don't realize emus once also roamed Tasmania but ...

Evolution Jan 20, 2023

Could feral animals in Australia become distinct species? Some early signs that it's possible

You might think evolution is glacially slow. At a species level, that's true. But evolution happens every time organisms produce offspring. The everyday mixing of genes—combined with mutations—throws up new generations upon ...

Astronomy Jan 18, 2023

Using the shadows of clusters to measure the universe

Astronomers have begun using a sophisticated suite of simulations, an advanced machine learning model of the formation of galaxy clusters, and an exotic relationship between galaxies to understand the origins of dark matter ...

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