Life
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We summarize the week's scientific breakthroughs every Thursday.
- Neuroscience
Year in review: Alzheimer’s protein behaves like a prion
Under rare conditions, an Alzheimer’s-related protein may have jumped between people, scientists reported this year.
- Genetics
Year in review: Cancer genetics grows up
Researchers looking for mutations linked to cancer have found that not all genetic alterations should be targeted equally.
- Animals
Year in review: Woes of artificial lighting add up for wildlife
Studies published this year add dodging death, flirting and mothering to the tasks that artificial light can discombobulate in wild animals.
By Susan Milius - Neuroscience
Year in review: ‘Speed cells’ help make navigation possible
The discovery of speed cells in the brain filled in a missing piece in the understanding of how the brain creates an internal map of the world.
- Animals
Year in review: New dates, place proposed for dogs’ beginnings
This year’s dog research suggested older origins and a new location of domestication for man's best friend.
- Genetics
Year in review: Fluke extinction surprises lab
A die-off of bacteria in a carefully controlled lab experiment offered an evolutionary lesson this year: Survival depends not only on fitness but also on luck.
- Neuroscience
Year in review: Gaps in brain nets might store memories
Holes in nets that surround nerve cells may store long-term memories, scientists proposed this year.
- Life
Science explains what makes dogs such sloppy drinkers
There’s hidden precision in the splashy mess of a dog drinking.
By Susan Milius - Animals
Forgetful male voles more likely to wander from mate
Poor memory linked to a hormone receptor in the brain could make male prairie voles more promiscuous.
- Plants
Single gene influences a petunia’s primary pollinator
Mutations on a single gene determine how much ultraviolet light a petunia flower absorbs, and in turn, which animal pollinates the flower.
- Life
To push through goo, use itty, bitty propellers
Newly designed micropropellers mimic bacteria to move through viscous surroundings.
- Animals
New movie asks viewers to care about whale hunters. Will they?
A new movie tells the tale of sailors shipwrecked by a whale. But it’s hard to feel sorry for the people trying to kill the animal.