Shi En Kim

Shi En Kim

 

Shi En Kim is a Washington, D.C.-based freelance science journalist. Her work has appeared in National Geographic, Scientific American, the Atlantic, Popular Science and others. In 2021, she interned at Smithsonian magazine as an AAAS Mass Media Fellow.

Good dogs often gets treats as rewards. A new experiment shows that dogs who get fed, when given the chance to reciprocate, usually won’t pay their owners back with food.

New Study Shows Dogs Don't Return the Favor After Strangers Feed Them

A new lab experiment reveals pooches don’t pay humans back with a treat after the canines are fed

A healthy crop of mussels lines the coast, exposed during low tide. Mussels will split open when they overheat, such as in June's heat wave.

Pacific Northwest and Canada's Crushing Heat Wave Cooks Millions of Sea Creatures

The estimated death toll could be more than a billion

A brown trout caught in Seedskadee National Wildlife Refuge

Meth Pollution in Waterways Turns Trout Into Addicts

Like humans, fish can get addicted to methamphetamines and go through withdrawal

Ingenuity releases its first aerial photos of its shadow cast across the Séítah terrain during its ninth flight.

NASA's Ingenuity Helicopter Soars 2,000 Feet Through Martian Atmosphere in Its Ninth Successful Test Flight

The aerial trooper set new records for speed and distance, as well as stretched the capabilities of its navigation system

An explosion seen off the Caspian Sea on July Fourth was attributed to a mud volcano eruption.

Azerbaijan Mud Volcano Erupts in Fiery Display

The flames towered an impressive 1,600 feet into the air

Mice pups were borne out of freeze-dried mice sperm that had been stored on the International Space Station for up to six years. Some of those mice and their offspring are pictured here.

After a Six-Year Sojourn in Space, Freeze-Dried Mice Sperm Produce Healthy Pups

Scientists say the finding supports the idea that genetic material can be shipped to other worlds to help establish a diversity of life

Scientists reconstructed a new beetle species in 3-D thanks to X-ray scans of fossilized poop.

New Species of Beetle Found in 230-Million-Year-Old Feces

The insect is older than any amber-encased specimen, and may inspire scientists to look for more insects in fossilized dung

Fire ant swarms form tentacles when they float on water.

Floating Fire Ant Rafts Form Mesmerizing Amoeba-Like Shapes

Researchers say the morphing colonies help ants feel for solid land in a flooded environment—and might inspire swarming robots one day

An artist’s illustration shows an asteroid hitting Earth. Large impactors hit the planet every one to three million years.

New Research of Impact Crater Blows Away Previous Estimates of Its Age

Scientists say the Boltysh crater in Ukraine formed well after the impact in Mexico that caused the dinosaurs to go extinct

A pygmy blue whale (Balaenoptera musculus brevicauda) crosses the Indian Ocean and passes near Mirissa, Sri Lanka.

Using Nuclear Bomb Detectors, Scientists Overhear the Secret Songs of a Never-Before-Seen Pygmy Blue Whale Population

The new group is named 'Chagos' after the islands close to where the melodies were detected

On the center plant, poking out from the stem is a bent side stalk, which holds up the arm of the plant with a flower.

Scientists Discover a New Plant Organ

The structure, called a cantil, holds up the flower-bearing arm of the thale cress, a long-studied species

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