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Katarina Zimmer

Katarina Zimmer is a freelance science and environment journalist.

Deep Sleep Is This Mammal’s Super Power

How a threatened Australian marsupial is thriving in the face of drought

September 30, 2025

Marking Time in a Changing World

Climate change is throwing traditional calendars into disarray

July 24, 2025

The Inner Lives of Cells

New microscopes are giving scientists a better understanding of human biology and disease

July 18, 2025

How Fishing Could Change the Evolution of Fish

Our appetite for fish can alter their bodies, minds, and behaviors

May 30, 2025

How These Fish Lost Their Memory

The unexpected consequences of harvesting old, wise fish

May 29, 2025

The Problem with Problem Sharks

Some of them seem to be repeat offenders

January 29, 2025

When Songbird Couples Split

A warming climate may cause more bird couples to break up.

December 6, 2024

Speaking With Whales

AI could help us understand what whales are saying. But should we talk back?

September 30, 2024

Excavating a Language at the End of the World

How an old dictionary is revealing new perspectives on an Indigenous culture.

July 31, 2024

What’s In a Fish’s Name?

Indigenous words for fishes open a window into endangered cultures.

March 12, 2024

Why Are Marine Mammals Losing Their Hair?

Spikes in alopecia puzzle scientists—and may be a symptom of ecological disruption.

August 31, 2023

The Secret Messages in Ancient Storms

Paleotempestology promises to uncover patterns of historical hurricanes—to better predict destructive weather of the future.

June 23, 2023