Science & Technology

Science and technology news

Some scientists have speculated that snakes first evolved in water and that their long, slithery bodies were streamlined for swimming. But a new analysis suggests that the most recent common ancestor of all snakes actually lived on land.

This ancestral protosnake probably was a nocturnal hunter that slithered across the forest floor about 120 million years ago. And it likely had tiny hind limbs, left over from an even earlier ancestor, says Allison Hsiang, a researcher at Yale University.

Reddit, billed by its founders as "the front page of the Internet," has long been known as a place of unbridled free speech on the Web where users, known as Redditors, post text, pictures and videos.

But that unbridled free speech sometimes spills over into harassment, sexism and racism. Over the past couple of years, Reddit has been at the center of several controversies concerning harassment, including the release of hundreds of private celebrity photos. It's also become infamous for its unbridled vitriol.

Making morphine — or heroin*, for that matter — isn't easy. You have to know a bunch of fancy chemistry to synthesize the drug from scratch. Or you have to get your hands on some opium poppies and extract morphine from the flowers' milky juice.

The latter is tougher than it sounds. Sure, the beautiful flowers grow across millions of acres around the world. But farming and trading poppies are tightly regulated both by laws and by drug kingpins.

Seven years ago, Pieter Abbeel set out on a quest: to teach a robot how to fold laundry. This proved to be a remarkably difficult task — and the difficulty of the task illuminates some key things about the limits of machines.

Abbeel, a professor at the University of California, Berkeley, named his robot BRETT — short for the "Berkeley Robot for the Elimination of Tedious Tasks."

A couple of toy planes are out to catch illegal loggers and miners in the Amazon.

It's an awesome responsibility.

Every year, illegal logging and mining in the Peruvian Amazon destroy tens of thousands of acres of rain forest. The deforestation in remote parts of the jungle is difficult to detect while it's going on.