News

How Being Social Shapes the School—for Fish

When they’re first born, baby Amazon mollies aren’t super social, but after about three weeks, something switches and they become socially attuned to their schoolmates. A new study led by researchers from the University of California, Davis, shows that groups of fish develop idiosyncratic group dynamics, even when the groups are genetically identical.

A ‘Male Organ’ for Flies Reveals How Evolution Invents New Body Parts

A male fruit fly aspiring to mate faces steep odds. First, he must spend up to 20 minutes maniacally buzzing and dancing. Even then, his success or failure hinges on a single split-second maneuver, when he vaults onto the female, parts her wings, and connects his abdomen to hers. If the gymnastics go awry, the female delivers a powerful mule-kick — sending him tumbling away. 

Among the Academies: A Lifelong Fascination with Fish

For Peter Wainwright, the academic path was simple: he simply followed his fascination with fish.

"I dare say there wasn't a lot of deep thought about what direction I should go in my life," he said. "It was more, I like fish, let's see if I can do something with fish. It was all very organic."

Among the Academies: Questions for Plants

As the planet warms, how will plants respond? For a clue, evolutionary ecologists like Sharon Strauss can move a plant outside of its comfort zone.

Strauss, a distinguished professor emerita of evolution and ecology, has conducted numerous experiments growing plants under conditions where they aren’t usually found, with the aim of studying how they’ll respond.

Study Reveals How Avocados Reverse Sexes Throughout the Day

To avoid self-pollination, avocado trees alternate between opening male and female flowers at different times of day. Some avocados are female in the morning and male in the afternoon, while others are on the opposite schedule. How avocados do this has been unclear — until now.

A Native California Wildflower Isn’t Keeping Up with Climate Change

The mountain jewelflower inhabits a wide swath of California and Oregon, from summer-scorched foothills to high mountains where snow falls during winter. But it is already suffering from climate change, with plants in the mountains struggling to survive both summers and winters, according to a study from the University of California, Davis.

These California Wildflowers Could Save Other Plants

As wildflowers go, the mountain jewelflower is demure, clever and quietly unbreakable. It has spread across many of California’s iconic landscapes, from Sonoma wine country to the oak-dotted foothills, even over the Sierra Crest, where snow covers the ground during winter.