July 23, 2016 | Science News

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July 23, 2016

Editor's Note

Our editor in chief discusses the science of aging.
By Eva Emerson | July 7, 2016
Magazine issue: Vol. 190, No. 2 , July 23, 2016 , p. 2

Features

hour glass illustration

Feature

Despite disagreements about what aging is and isn't, scientists have reached a radical consensus: It can be delayed.
John Scott looks at a model of his white matter tracts

Feature

The brain's decline may mirror its beginning, offering clues to aging.
hydra

Feature

There is great variety in how animals and plants deteriorate (or don’t) over time.

Call to Action

SUPPORT SCIENCE NEWS

Science News is a nonprofit.

Help us keep you informed.

Editor's Note

Our editor in chief discusses the science of aging.

Features

hydra
There is great variety in how animals and plants deteriorate (or don’t) over time.
John Scott looks at a model of his white matter tracts
The brain's decline may mirror its beginning, offering clues to aging.
hour glass illustration
Despite disagreements about what aging is and isn't, scientists have reached a radical consensus: It can be delayed.

News

Elizabethkingia bacteria
Outbreak of Elizabethkingia continues to grow as disease investigators struggle to find source.
biker and graph
Well-timed exercise strengthens memories.
illustration of planet 9
Lots of unknowns remain as researchers try to pin down where a possible ninth planet might be hiding in the solar system.
Leonardo the duck-billed dino
Tiny slimed tunnels in the guts of a 77-million-year-old duck-billed dinosaur fossil offer the first hard evidence that dinosaurs may have been infected by parasitic worms, paleontologists say.
birds of a feather
Birds’ internal compasses may rely on the delicate nature of the quantum world.
child brushing teeth
Mothers aren’t their children’s only source of bacteria that cause dental cavities, new research shows.
scale development
Hair, scales and feathers arose from same ancestral appendage.
cell and fertilized egg with mitochondria
Scientists have identified a protein that chops up the mitochondrial DNA in a dad’s sperm after it fertilizes an egg. The finding helps explain why mitochondrial DNA is usually passed on only by mothers.
<em>Anolis cristatellus</em>
To look for evolution in human-scale time, pick a city and watch a lizard. Or some clover.
hydrothermal vents
Ecosystem-supporting hydrothermal vents are much more abundant along the ocean floor than previously thought.
Preah Khan in Cambodia
Laser survey unveils the extent, and the mystery, of Southeast Asia’s Khmer Empire
cocaine
Habitual users tend to get stuck in nondrug-related habits more easily, too, pointing to a potential strategy for treatment
NASA’s Juno spacecraft successfully entered orbit around Jupiter, beginning a 20-month investigation of the giant planet’s interior.
ozone map
The September extent of the Antarctic ozone hole has shrunk by about 4.5 million square kilometers since 2000, thanks in large part to the Montreal Protocol.
balloons
A volcanic region of Tanzania contains more than a trillion liters of helium gas, enough to fill 1.2 million medical MRI scanners — or hundreds of billions of balloons, researchers report.
girl with dog
After discovering resistant microbes in pets, scientists worry about the role of companion animals in the spread of resistant urinary infections.
mouse nerve cell stimulation
Nerve cells in newborn mice can’t yet feed themselves.

Notebook

coral in American Samoa
Widespread coral bleaching continues, in the longest episode, over the largest area to date.
Tests of bagged ice found that 19 percent exceeded recommended thresholds for bacterial contamination.
Meteorites
A newly discovered meteorite, nicknamed Öst 65, may have originated from the same collision that formed L chondrites, one of the most abundant groups of meteorites on Earth.
woman wearing cochlear implant
Scientists envisioned artificial hearing 50 years ago. Today, they are working to make it superhuman.
illustration of orbit of asteroid 2016 HO3
Asteroid 2016 HO3 is a quasisatellite of Earth — orbiting the sun while never wandering far from our planet.

Reviews & Previews

Koko and Penny
'Koko — The Gorilla Who Talks' documents the nearly 45-year relationship between researcher Penny Patterson and Koko, the subject of an ape sign language project.
stretch it out
In 'Cracking the Aging Code', theoretical biologist Josh Mitteldorf and writer Dorion Sagan take a different approach to the science of growing old.

Letters to the Editor

Animal vision, ice-making microbes, brain maps and more reader feedback.

Science Visualized

dog and cat birthday party
The animal world can offer insights into human longevity.