Photograph of Stephanie DeMarco. She has brown hair and blue eyes and is smiling at the camera.

Stephanie DeMarco, PhD

Managing Editor at The Scientist

Stephanie earned her PhD in Molecular Biology from the University of California, Los Angeles in 2019 where she studied parasitology and microbiology. She was an editor at Drug Discovery News from 2021 to 2025 where she spearheaded the podcast program and led the editorial team. She joined The Scientist as the Managing Editor in 2025. Her work has appeared in Discover Magazine, Quanta Magazine, and the Los Angeles Times among others.

Award

AAAS Mass Media Fellowship 2019

Articles by Stephanie DeMarco, PhD

A pair of women’s hands holds a depiction of a uterus with the ovaries shown in white over a pink background.

Ovarian Cancer May Finally Get a More Effective Treatment

A young boy wrapped up in a winter jacket breathes out, forming a cloud of air.

A Breath of Air Could Help Diagnose Gut Microbiome Disruptions

Half of a young woman’s face is shown on the left, and half of an older woman’s face is on the right, representing aging.

Aging Research Takes the Spotlight During JPM Week at the 2026 Biotech Showcase

A view of the open ocean as the sun begins to set near Easter Island.

How Ocean Currents Shape the Marine Microbiome

A border collie holds a pink donut toy in her mouth and another one around her neck while surrounded by a cabinet full of dog toys.

Some Dogs Can Learn New Words Just by Eavesdropping

Three female soccer players watch as one of their teammates does a bicycle kick on the soccer pitch.

Injured on Your Period? Healing May Take Longer

A grey mouse lemur pokes its head out from around a tree. This lemur hibernates during the winter even in a tropical climate.

From Lemurs to Lab Mice, Hibernators Reveal Insights into Human Health

A vector drawing shows a girl wrapped up in an orange blanket sitting on her bed while blowing her nose because she’s sick. Social isolation during sickness helps a person recover faster and prevent spreading the infection.

Feeling Asocial When Sick? A Brain-Immune Connection May Be Why

Blue balls in the shape of a brain fit inside a drawing of a male person in profile, and pink balls in the shape of a brain fit inside of a drawing of a female person in profile, representing sex differences in the brain.

Sex Differences in the Brain Get Down to the Molecular Level

A depiction of gut microbes in different colors inside the intestines.

Criticism of Autism-Gut Microbiome Research Sparks Pushback

A mouse wears big blue headphones over its ears.

Chronic Noise Exposure Led to Parkinson's Disease Symptoms in Mice

A spider of the Argiope bruennichi species sits in the center of the web. She has made stabilimenta in the “normal” orientation.

Spiders Spin Web Decorations That May Help Detect Prey

Illustration of a developing fetus surrounded by a clear fluid with a subtle yellow tinge, representing amniotic fluid.
January 2026

What Is the Amniotic Fluid Composed of?

The liquid world of fetal development provides a rich source of nutrition and protection tailored to meet the needs of the growing fetus.

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