More Stories from the June 15, 2013 issue
- Animals
Tongue bristles help bats lap up nectar
High-speed videos capture stretched-out tongue bumps that stretch out so nectar-feeding bats can slurp up their food.
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- Humans
Europe is one big family
Continent's ancestry merges about 30 generations ago, genetic study finds
- Health & Medicine
Black women may have highest multiple sclerosis rates
Large study counters common assumption that whites get MS more.
- Earth
The Arctic was once warmer, covered by trees
Pliocene epoch featured greenhouse gas levels similar to today's but with higher average temperatures.
- Psychology
Brain training technique gets a critique
In a new study, a popular style of memory workout leaves reasoning and mental agility flat.
- Life
Body’s clock linked to depression
Gene activity in the brain suggests that circadian rhythms are off-kilter in people with depression.
- Life
Fossils point to ancient ape-monkey split
Apes and monkeys split from a common ancestor more than 25 million years ago, fossil finds suggest.
- Climate
Warming may not release Arctic carbon
Element could stay locked in soil, 20-year study suggests.
- Life
Cloning produces human embryonic stem cells
Fine-tuning of technique used in other animals could enable personalized medicine.
- Materials Science
3-D imaging, pixel by pixel
Easy technique uses inexpensive equipment to make three-dimensional rendering.
- Planetary Science
Gone perhaps, but Kepler won’t soon be forgotten
Astronomers look forward to building on the planet-hunting telescope's discoveries.
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- Life
View to a cell
In 2013, Science News published a photo essay highlighting advances in microscopy that illuminate life within us, work that has now earned three researchers the 2014 Nobel Prize in chemistry.
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Letters to the editor
Wet Earth Erin Wayman’s article “Faint young sun” (SN: 5/4/13, p. 30), about how the early Earth stayed warm enough for liquid water, made me wonder about the effect of the temperature of the planet itself. A hotter core, thinner crust, more volcanism — wouldn’t those factors in addition to atmospheric influences affect surface temperature? […]
- Planetary Science
Thirty years to Mars
Excerpt from the June 15, 1963, issue of Science News Letter.
- Animals
Two books explore the weirdest life on Earth
Zombie Birds, Astronaut Fish and Other Weird Animals by Becky Crew and Weird Life by David Toomey.
