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Natalia Mesa, PhD

Articles by Natalia Mesa, PhD

person in white jacket putting bandaid on arm of child

Can We Predict How Well Someone Will Respond to a Vaccine?

(Left) The optic lobes are thought to be involved in visual processing. In this study, researchers found that guppies with larger optic lobes more quickly learned a visual discrimination task—identifying which color well contained food. (Right) The fish telencephalon is thought to be involved in spatial learning, memory, and inhibitory control. Here, the researchers found that a larger telencephalon might enhance the fish’s cognitive flexibility, allowing them to more quickly associate food with a new color after the researchers switched it.

Infographic: Two Guppy Brain Regions May Help Them Learn Tasks

Photo of a Guppy fish

Fish Brain Region Size Correlates with Cognitive Flexibility

Illustration of a green lab

Green Lab Initiatives Take Root Around the World

Blue 3D illustration of X-shaped chromosomes

X Chromosome Silenced in Some Cancers in Males

In the 1920s, the Institute for Sexual Research in Berlin was a haven for queer people, many of whom came to the institute seeking to express their identities without fear of being imprisoned. This undated photo depicts a costume party at the institute; its founder, Magnus Hirschfeld (second from right, in glasses), can be seen holding hands with his partner, Karl Giese (center).

Trans Medicine, 1919

Orange colony of bacteria on red medium

Skin Bacteria May Trigger Lupus: Mouse Study

illustration of neurons in blue and microglia in orange

Ancient Viral DNA Helps Mouse Brains Fight Infection

illustration of liver with veins in blue and arteries in red.

Ethanol-Making Microbe Tied to Nonalcoholic Fatty Liver Disease

3D imaging of organoid

Infographic: Generating Hundreds of 3D Organoid Images per Hour

Cellular therapy. 3d illustration

Expert JeWell-ry Designers

Purple and white fluorescent stain of cells

How Fat Cells Help Kick Parasites Out of Mice: Study

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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