World Topics

Jul 3, 2014

Frozen testicle tissue yields healthy baby mice

Sperm grown from the frozen testicle tissue of newborn mice has been used to produce healthy offspring, in a hopeful development for men left infertile by childhood cancer treatment, researchers say. In a process called spermatogenesis, the sperm was grown in a lab from ...

Jul 3, 2014

Chilean devil ray ranks among ocean's deepest divers

A ray known for basking on the ocean surface has turned out to be one of the natural world’s deepest divers, able to forage at submarine-crushing depths, scientists say. Researchers attached data recorders to 15 Chilean devil rays (known as Mobula tarapacana in Latin) ...

Jul 3, 2014

Suspected mad cow disease discovered in Romanian beef

A case of suspected mad cow disease has been found in Romanian beef, officials said Wednesday. Romania’s animal health and safety authority said a preliminary test on May 1 indicated that a cow slaughtered at an authorized abattoir was infected with bovine spongiform encephalopathy, ...

Jul 3, 2014

U.S., Japan scientists withdraw claim of simpler stem cells

U.S. and Japanese scientists who reported that they’d found a startlingly simple way to make stem cells withdrew that claim Wednesday, admitting to “extensive” errors in the research. In two papers published in January in the journal Nature, the researchers said that they’d been ...

Feds to clean up site of 1976 'Atomic Man' accident

Jul 3, 2014

Feds to clean up site of 1976 'Atomic Man' accident

Workers are preparing to enter one of the most dangerous rooms on the Hanford Nuclear Reservation — the site of a 1976 blast that exposed a technician to a massive dose of radiation, leading to him being nicknamed the “Atomic Man.” Harold McCluskey was ...

Jul 2, 2014

West African Ebola toll skyrockets to 467

The number of deaths attributed to an epidemic of Ebola virus in Guinea, Liberia and Sierra Leone stood at 467 by Monday, out of 759 known cases in total, the World Health Organization said Tuesday. The outbreak of the deadly disease is already the ...

Jul 2, 2014

'Slavery' driving apes to extinction

Thousands of great apes are killed or trafficked into “slavery” each year in a multimillion dollar illegal trade that is driving some of man’s closest relatives toward extinction, conservationists said Tuesday. “Organized criminal networks, involving corrupt government officials, threaten great apes with extinction by ...

Bigfoot claims stepped on by DNA analysis

Jul 2, 2014

Bigfoot claims stepped on by DNA analysis

DNA testing is taking a bite out of the Bigfoot legend. After scientists analyzed more than 30 hair samples reportedly left behind by Bigfoot and similar mythical beasts like the Himalayan Yeti, they found all of them came from more mundane creatures like bears, ...

Jul 1, 2014

Yosemite celebrates 150th anniversary

Yosemite National Park on Monday marked 150 years since President Abraham Lincoln signed an act protecting the park for generations of visitors. The celebration included a groundbreaking to launch a project restoring the Mariposa Grove, which consists of 500 mature giant sequoia trees that ...

Fear, suspicion undermine fight against Ebola

Jul 1, 2014

Fear, suspicion undermine fight against Ebola

When Mohamed Swarray contracted the deadly Ebola disease in June, he was confined to a tented isolation ward at Kenema in eastern Sierra Leone. But he didn’t stay there long. Suspicious of the doctors in their masks and body-length protective suits, he slipped out ...