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A micrograph with a grey background shows both purple bacteria and green algae within a ciliated microorganism
A Protist Hosts Both Green Algae and Purple Bacteria Symbionts
Abby Olena, PhD | Jun 11, 2021 | 3 min read
Having two different endosymbionts may allow the ciliate Pseudoblepharisma tenue to live in both oxygen-rich and oxygen-poor zones of the muddy bogs of southern Germany.
A Last-Minute Science Dash to an Erupting Volcano
Jef Akst | Dec 1, 2019 | 5 min read
Researchers plan an oceanographic expedition to understand why a phytoplankton bloom developed as molten lava flowed into the sea east of Hawaii's Big Island.
Dinosaur Fossil (Tyrannosaurus Rex) Found by Archaeologists
Are We in the Midst of a Sixth Mass Extinction?
Katarina Zimmer | Jul 18, 2022 | 10+ min read
Today’s extinction rates are sky-high. But scientists debate if that’s sufficient evidence to conclude that Earth is undergoing a mass extinction event—or whether that’s even a helpful designation.
a microscope image of a rotifer
Bacterial Enzyme Keeps Rotifers’ Transposable Elements in Check
Christie Wilcox, PhD | Mar 3, 2022 | 5 min read
Jumping genes in bdelloid rotifers are tamped down by DNA methylation performed by an enzyme pilfered from bacteria roughly 60 million years ago, a study finds.
A pair of zebra finches in a cage
Animal Divorce: When and Why Pairs Break Up
Catherine Offord | Jun 1, 2022 | 10+ min read
Many species of birds and other vertebrates form pair bonds and mate with just one other individual for much of their lives. But the unions don’t always work out. Scientists want to know the underlying factors.
Peter Tyack: Marine Mammal Communications
Anna Azvolinsky | Jul 1, 2016 | 9 min read
The University of St. Andrews behavioral ecologist studies the social structures and behaviors of whales and dolphins, recording and analyzing their acoustic communications.
Dolphins by Name
Sabrina Richards | Jul 23, 2013 | 3 min read
Bottlenose dolphins can recognize and respond to their own “signature whistles,” strengthening the evidence that these whistles function like names.
Oceansā€™ Ambassador
Anna Azvolinsky | Jul 16, 2017 | 8 min read
Jane Lubchenco has embraced many roles: marine ecologist, science communicator, federal agency administrator, and sustainable fishing advocate.
Adapting to Elevated CO2
Rina Shaikh-Lesko | Sep 1, 2015 | 3 min read
High carbon dioxide levels can irreversibly rev up a cyanobacterium’s ability to fix nitrogen over the long term, a study finds.
Life Thrives Within the Earth’s Crust
Catherine Offord | Oct 1, 2018 | 10+ min read
From journeys into mines to explorations of volcanoes on the ocean floor, deep voyages reveal the richness of the planet’s deep biosphere.

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