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News in Brief
Triclosan aids nasal invasions by staph
Sneezing out antimicrobial snot may sound like a superpower, but it actually could be a handicap.Triclosan, an omnipresent antimicrobial compound found in products ranging from soaps and toothpaste to medical equipment, is already known to show up in people’s urine, serum and breast milk. It seeps in through ingestion or skin exposure. Now, researchers have found that it gets into snot, too. And...04/15/2014 - 14:46 Health, Microbes, Toxicology -
Science Ticker
Modern hunter-gatherers' guts host distinct microbes
Tanzania’s Hadza hunter-gatherers have guts teeming with bacteria much more diverse than what's found in Italians' intestines. But the foragers don't have Bifidobacterium, which is considered healthy, and do have more Treponema and other microbes that signal disease in Western populations. Hadza men and women even have major differences in their gut microbes.These differences...04/15/2014 - 12:27 Genetics -
News
IPCC calls for swift switch to alternative power
The best scenario for slowing global warming by 2100 requires the world to triple or quadruple by 2050 its use of renewable energy and sources of energy that emit only low amounts of greenhouse gases.The recommendation comes from the Intergovernmental Panel on Climate Change in its third and final report of its fifth...04/13/2014 - 19:49 Climate -
Gory Details
How urine will get us to Mars
Every day, you flush a liter or two of urine down the toilet. Unless you live in one of the dry places considering toilet-to-tap systems, you probably never consider drinking it.But if humans are ever going to get to Mars, we’re going to get there drinking our own pee. Now scientists have built a...04/11/2014 - 16:38 Chemistry -
Wild Things
Lionfish grow wary after culling
The beauty of the lionfish, with its striking stripes and decorative fins, has made the members of the genus Pterois popular for aquariums. That popularity may have led to two species of the fish (P. volitans and P. miles) to make their way into the Atlantic, where they’ve become troublesome invasive...04/11/2014 - 11:30 Animals, Conservation -
Wild Things
Small sperm whale species share a diet
Herman Melville may have made the sperm whale (Physeter macrocephalus) famous with Moby Dick, but there are other good reasons why you may not be familiar with the huge predator’s smaller cousins, the pygmy and dwarf sperm whales (...04/09/2014 - 12:30 Animals -
It's Alive
See-through shrimp flex invisible muscle
Much of the body of a Pederson’s transparent shrimp looks like watery nothing, but it’s a superhero sort of nothing. The shrimp is transparent enough to read through, but it’s not some frail, filmy thing. It’s packed with invisible muscle.Searching for Ancylomenes pedersoni shrimp has a touch of the summer-camp prank about it, being a hunt for something that’s mostly invisible. On a...04/08/2014 - 11:02 Animals -
Growth Curve
If your kid hates broccoli, try, try again
Baby V really likes to eat. A lot. Ever since she got her first taste of avocado at around 4 months old, the girl has not turned a single snack down. Sardines. Pickles. Plain Greek yogurt. Luckily for me, she eats it all with gusto.Until this week. For some mysterious reason, Baby V started to refuse her scrambled eggs. She simply won’t touch them. (OK, that’s not exactly true: She loves ...04/07/2014 - 17:52 Human Development -
Firsts
Ancient crustacean had elaborate heart
The early ancestors of insects, centipedes and crustaceans had big hearts.A fossil from 520 million years ago shows that the now-extinct Fuxianhuia protensa had a broad spindly heart that extended into a complex system of arteries, which sent blood to the creature’s limbs and organs, including its brain, eyes and antennae. The new 7.6-centimeter-long fossil from Kunming, in southwest...04/07/2014 - 16:00 Paleontology -
Feature
Whooping cough bounces back
Whooping cough has turned up in North America after decades of near absence, and we have only ourselves to blame.In the last several years, the highly contagious microbe that causes whooping cough has spawned a string of outbreaks, adeptly piercing the shield of vaccination that once afforded solid protection against it. The last time whooping cough was this pervasive in the United States, Dwight...04/04/2014 - 14:00 Health, Clinical Trials