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Exploring why different groups of people, zebras, and even ants make nice
A panel discussion featuring evolutionary anthropologist Sarah Mathew, behavioral ecologist Leveda Cheng, behavioral biologist Stephanie King, and Harvard psychology professor Mina Cikara

Exploring why different groups of people, zebras, and even ants make nice

Cooperation can make us stronger, building alliances and increasing the availability of resources. A recent symposium hosted by the Human Evolutionary Biology Initiative brought together researchers to examine this principle, sharing studies and findings on intergroup cooperation from a variety of fields.

Alarm over menstrual tracking apps
Professor Sarah Richardson in her office at Harvard University

Alarm over menstrual tracking apps

Menstrual tracking apps have become all the rage, leading the growing field of “femtech” that claims to help women understand — and regulate — their bodies. But these apps may promise more than they deliver — and even be harmful to women.

 Rediscovering Thoreau the scientist
University of Connecticut professor Robert M. Thorson speaking about his book “The Walden Experiments” at a podium beneath a slide featuring a portrait of Henry David Thoreau

 Rediscovering Thoreau the scientist

Henry David Thoreau famously went to Walden Pond to live deliberately. But for far longer, he pursued a lesser-known obsession: observing scientifically.

The optimal diet? Kitchen experiment leads scientist to answer
Professor Dan Lieberman and Tonia Prescott in their kitchen. Lieberman stirs a pot on the stove and Prescott holds a tomato.

The optimal diet? Kitchen experiment leads scientist to answer

For most of his life, Daniel Lieberman has dedicated his mind to studying the evolution of the human body. In his latest project, he also devoted his body — specifically his digestive tract — to science.

At Harvard Forest, doomed eastern hemlocks found to further future generations
Small, newly regrown hemlock trees under larger old-growth forest

At Harvard Forest, doomed eastern hemlocks found to further future generations

Sixteen years ago, an invasive pest called the woolly adelgid arrived at Harvard Forest and slowly began to devastate its the eastern hemlocks — as they had done in forcce elsewhere. Since then, Harvard Forest scientists have begun to study how to manage the demise of its so-called foundation species.

How to build an evolutionary trap for viruses
M.D./Ph.D. student Vaibhav Mohanty, at left, with Eugene Shakhnovich, Roy G. Gordon Professor of Chemistry, used a chalkboard to illustrate their fitness landscape design (FLD).

How to build an evolutionary trap for viruses

Two Harvard scientists describe a way to engineer the evolutionary landscape that viruses experience, pushing them away from dangerous variants and into evolutionary dead ends.

What sprawling light pollution does to fireflies
Fireflies in a field

What sprawling light pollution does to fireflies

As the sun sinks below the horizon, two scientists perch quietly beside a darkening field and wait for flashes of light. They have traveled far outside the city in search of research sites, because they study a group of creatures that have been driven to the margins of human settlements: fireflies.

Lab-grown brain ‘organoids’ set longevity record
A stack of lab dishes containing lab-grown human brain organoids

Lab-grown brain ‘organoids’ set longevity record

In a new milestone for stem cell research, Harvard neuroscientists have set a record for keeping alive lab-grown human brain “organoids” and proven that they mimic key developmental stages seen in living people.