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Single-celled organism with no brain is capable of Pavlovian learning

Stentor coeruleus is a single-celled organism with unexpected abilities MELBA PHOTO AGENCY / Alamy A simple unicellular organism with no brain or neurons seems capable of an advanced form of learning. The simplest form of learning, known as habituation, is…

The best eReaders for 2026, tested and reviewed

Sign Up For Goods Product news, reviews, and must-have deals. An eReader is more than a convenient way to carry an entire library on an airplane. Today’s eReader screens are stunning, with sharp text that looks just like real ink…

Scientists discover ALS protein that links DNA repair to cancer and dementia

Researchers at Houston Methodist have discovered that a protein tied to neurodegenerative conditions such as dementia and amyotrophic lateral sclerosis (ALS) also helps control a critical DNA repair process. This repair system, known as DNA mismatch repair, corrects mistakes that…

ByteDance has reportedly suspended the global rollout of its new AI video generator

A month after Seedance 2.0’s launch in China sparked cease-and-desist letters from Disney and Paramount Skydance over its use of copyrighted materials, its developer ByteDance has reportedly hit pause on the release of the AI video tool in other regions….

Trump administration is collecting $10 billion on the TikTok deal

In September, Donald Trump claimed that “the United States is getting a tremendous fee” for brokering the TikTok deal. Now sources tell the Wall Street Journal and the New York Times that fee is expected to be in the range…

The MacBook Neo is ‘the most repairable MacBook’ in years, according to iFixit

Apple’s new MacBook Neo isn’t just the most affordable MacBook by far — it’s also the most repairable MacBook in “about fourteen years,” according to an in-depth teardown by how-to website iFixit. The “big story,” in iFixit’s view, is the…

Samsung Galaxy S26 Ultra Review: The Privacy Screen

Even better, because it’s integrated, you can customize when the Privacy Display turns on through the software. Mine activates automatically with select messaging apps, banking apps, and for notifications, and there’s no visual indication when looking at the phone straight…

The 3 things you need to know about passwords, from a security expert

Passwords are both a curse and a blessing tete_escape/Shutterstock Passwords occupy an odd place in our lives. They’re both a blessing – keeping our data and information safe from anyone intruding into our IT systems and accessing them – and…

7 Kindle settings you should change

Get the Popular Science daily newsletter Breakthroughs, discoveries, and DIY tips sent six days a week. All of the Amazon Kindle models are intentionally designed to be straightforward to use. Grab your Kindle, tap the power button, and you’re back…

Textbooks were wrong: Scientists reveal the surprising way human hair really grows

New research suggests human hair does not grow by being pushed out from the root as long believed. Instead, scientists found that hair is pulled upward by forces created by a hidden network of moving cells within the follicle. The…