Stories by Tanya Lewis

Top news from around the world

Signals long thought to be “noise” appear to represent a distinct form of brain activity

From a rollback of environmental protections to attempts to repeal the Affordable Care Act, here’s a look at the president’s impact on science-related issues

But the White House memo completely omits climate science and space, emphasizing military tech and basic R&D

Studying the dreaming brain offers a window on consciousness

It pays to get the time spent on a device just right

New research suggests our last common ancestor with these monkeys possessed the vocal machinery needed to speak

Fourth- and eighth-graders score better than before, but weak gains and overall poor marks hint at long way to go

The winning team's robot, a humanoid design that could transform into a wheeled kneeling position, finished all eight tasks in less than 45 minutes

Subjects tricked into thinking that they were invisible sweated less when a brush stroke was applied 

A study reveals that people's "fish stories" are usually exaggerated when compared with scientific reports of body sizes for marine creatures

Dolphins can sense magnetism, suggesting that they track Earth’s magnetic field to navigate through the water

Flock to this: A new analysis of anatomical features shows birds evolved gradually from dinosaurs

The holes are likely a type of sinkhole formed from melting permafrost or ice, which most likely erupted due to a collection of natural gas within the underground spaces

The coupling of the space rock that crashed into Earth with a period of low diversity among herbivorous dinosaurs may have set the stage for the massive die-off 65-million years ago

Evidence of featherlike structures have been found for the first time in the fossil of a plant-eating dinosaur rather than the dinosaur lineage closely related to birds

An old Soviet-era, self-propelled, medium-range surface-to-air missile could have been used to take down the flight that was shot down, killing 298 people

The number of positive or negative posts people saw in their feeds was manipulated and found to influence the content of users' subsequent posts

A restaurant experiment indicates signs of rodent regret after consuming greasy grub

Scientists found dozens of fossils of the marine reptile, measuring up to five meters long, as the melting glacier exposed new rock faces

A structural study of spider fangs found that their curved, hollow design gives them the necessary strength for piercing and injecting their prey

Analysis of a 325 million-year-old fossil suggests that modern sharks have evolved extensively, rather than remaining unchanged since prehistoric times

High-speed video reveals why flies are so hard to swat

Scientists can use the map to figure out how developmental disorders like autism first begin