science

Science, Tech & Environment

For animals, and humans, having bigger weapons can keep you from having to fight at all

In the battle for physical and sexual supremacy, human tactics haven’t progressed much past the lowly dung beetle. We may have brains capable of producing art and science, and we don’t spend our days hauling around dung (well, most of us don’t, anyway), but otherwise — not much has changed.

Science, Tech & Environment

Melting Arctic sea ice doubles the chances of harsh winters in other parts of the world

When most people hear the term "global warming," they naturally think of air temperature. In reality, more than 90 percent of the warming caused by greenhouse gases happens in the oceans. Much of this warming takes place in the waters in and around the Arctic Ocean, leading to increasingly rapid melting of sea ice. A new study links this melting to cold, harsh winters that are becoming more common in parts of the world.

Science, Tech & Environment

Geo answer

The answer to today's Geo Quiz is Basel, Switzerland. The city was home to Swiss chemist Albert Hofmann, who died yesterday. The World's David Leveille reports that Hofmann's discovery of LSD remains controversial.

Science, Tech & Environment

Fibbing fiddler crabs

Turns out that animals lie. At least fiddler crabs do, according to a new study by Australian scientists. The BBC's Matt McGrath tells anchor Lisa Mullins how growing a fake claw helps male fiddler crabs win mates and avoid fights.

Arts, Culture & Media

Geo answer

The answer to today's Geo Quiz is the Egyptian city of Luxor located at the site of the ancient city of Thebes. Mummies from the Brooklyn Museum had a CAT scan this week. Lisa Mullins gets the story from the museum's Egyptian art curator Edward Bleiburg.

Lifestyle & Belief

Dubai launches subway system

Dubai opened the Arab Peninsula's first metro system today. It's to become the world's longest driverless train system. Anchor Marco Werman speaks with John Alexander Smith, professor of Architecture and Interior Design at American University in Dubai.

Arts, Culture & Media

The underwear economy

Economists and analysts track just about everything to gauge how the economy is doing. Some analysts just focus on one product- can we really learn how the economy is doing by looking in our underwear drawers? The World's Jason Margolis reports.