Earth
- Ecosystems
Encased algae create kaleidoscope of color
The skeletons of diatoms, algae that produce oxygen but also form toxic blooms, can create beautiful microscopic designs.
- Paleontology
Sudden heat spikes did in Ice Age’s mammoth mammals
Abrupt warming and excessive hunting by ancient humans were responsible for the disappearance of many large mammals, including woolly mammoths, during Earth’s last glacial period.
- Environment
Fracking doesn’t always go to great depths
Fracking at shallow depths is unexpectedly common in the United States and raises new concern for drinking water contamination.
- Animals
Sea level rise threatens sea turtles
Sea level rise is causing coastal areas to be inundated with water. Even short periods of being wet can kill sea turtle eggs, a new study finds.
- Animals
Eyewitness account of a dolphin birth takes a dark turn
Scientists witnessed the first wild birth of a bottlenose dolphin — and an attempt at infanticide.
- Climate
Carbon dating may soon lead to mismatches
Carbon released from burning fossil fuels will jeopardize the effectiveness of many carbon dating applications, new research predicts.
- Oceans
Blooming phytoplankton seed clouds in the Southern Ocean
Booming phytoplankton populations spark cloud formation in the Southern Ocean.
- Climate
Current El Niño coming on strong
Meteorologists expect the ongoing El Niño to strengthen in the coming months and alter weather patterns worldwide, including bringing potential drought relief to California.
- Climate
Wildfire seasons have gotten almost 20 percent longer
The average length of wildfire seasons has increased 18.7 percent since 1979, new research shows.
- Earth
Bringing mammoths back, life on early Earth and more reader feedback
Readers debate the pros and cons of reviving extinct species, discuss the odd light-processing machinery of the eye and more.
- Plants
Flowers’ roles considered in ecosystems and economics
In ‘The Reason for Flowers’, a pollination ecologist chronicles the science and culture of blossoms from the dawn of humanity.
- Earth
Natural concrete keeps lid on Italian volcano
Naturally occurring, concretelike rock allows the ground around Italy’s Campi Flegrei caldera to bulge without bursting.
