Reporting in Science, researchers write of an experiment in which rats worked to open the cages of trapped rats, but not empty or dummy-filled cages. Author Peggy Mason discusses empathy in non-primates, and the value rats place on freeing a companion--about equal to that of a stash of chocolate chips.
In Asia's Space Race: National Motivations, Regional Rivalries, and International Risks, Naval Postgraduate School professor James Clay Moltz discusses the potential militarization of fast-growing space programs in China, India, and Japan--and why US military officials are keeping watch.
This is SCIENCE FRIDAY. I'm Joe Palca. Ira Flatow is away this week. The biotech company AquaBounty Technologies of Waltham, Massachusetts, has developed a genetically modified Atlantic salmon that grows twice as fast as regular salmon. How has it done this? By tinkering with the salmon's genome, adding a growth hormone gene from one fish plus an antifreeze gene from another.
When they both worked at Princeton, Howard Stone and Jeff Aristoff used to play basketball at lunchtime. One day, when Dr. Stone was warming up with his jump rope, the two wondered if anyone had mathematically modeled the shape of the rope. The two researchers decided to give it a whirl.
Presenting at a meeting of the American Society of Tropical Medicine and Hygiene, researchers said bedbugs can survive many generations of inbreeding, allowing one pregnant female to cause a building-wide infestation. Biologist Rajeev Vaidyanathan discusses that study, and another on pesticide resistance.
The news that Rep. Michele Bachmann (R-Minn.) and Gov. Rick Perry (R-Texas) have decided not to participate in the Dec. 27 Republican presidential debate that businessman/TV personality/self-proclaimed potential independent presidential candidate Donald Trump is supposed to be moderating means just two GOP contenders would be left for the event:
Former House Speaker Newt Gingrich (Ga.) and former Sen. Rick Santorum (Pa.).
This week, the Barbershop guys discuss a series of comments by Newt Gingrich suggesting that underprivileged kids could improve their work ethic by cleaning school bathrooms. Also, after nearly 30 years and numerous appeals, Philadelphia prosecutors are no longer seeking the death penalty for convicted cop killer Mumia Abu-Jamal.
Tell Me More Editor Ammad Omar and host Michel Martin comb through listener feedback from recent segments, including immigrants' personal stories and male mentoring in light of the Penn State child sex abuse scandal. They also discuss news updates from Florida A&M University, where a suspected hazing incident has shaken the campus.
This week Tell Me More's 'In Limbo' series has explored four personal stories of immigrants in the middle space between legal and illegal. To better understand the complex laws that have affected their lives, host Michel Martin speaks with Mark Krikorian of the Center for Immigration Studies.
The Congressional Hispanic Caucus has grown and changed since its inception, and few people know that better than the chair, Rep. Charles Gonzalez, D-Texas. His late father was one of the founders of the group. He speaks with host Michel Martin about the CHC's evolution and its mission.