In year of tiger, hardly 50 roam China

China is struggling to save its less than 50 wild tigers even as the Chinese zodiac enters the lunar year of the tiger on Sunday.

Conservation efforts are honing in on the remote northeastern forests bordering Russia. There are an estimated 20 wild Amur tigers on the Chinese side. On the Russian side roam about 500 wild tigers where their numbers increased tenfold in 50 years.

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Korea, United States break nuke deadlock

North Korea submitted a long delayed declaration of its nuclear program on Thursday, as the Bush administration immediately responded by saying it would remove the country it once described as part of the "axis of evil" from the State Department's list of state sponsors of terrorism.

The declaration was believed to provide a partial, though important, view of North Korea's nuclear capability, and it marked a significant step forward in a multi-national effort to end the country's drive to build nuclear weapons.

China, which has hosted the six-nation talks on the North's nuclear program, said Thursday afternoon that the North would abide by Thursday's deadline to submit its declaration. But an hour later, South Korea, another participant, said the North had already handed the declaration to China.

Whatever the source of the confusion, the White House announced shortly afterward that it would remove North Korea from the terrorism list and thus make it eligible for aid and assistance, a goal long sought by the cash-starved country.

The North was scheduled to follow up on Friday by blowing up a cooling tower at its Yongbyon reactor, about 60 miles north of Pyongyang. Pyongyang has invited officials and television networks from the five nations negotiating with the North on its nuclear program - the United States, China, Japan, South Korea and Russia - to witness the tower's demolition. But the destruction, which is expected to be broadcast live, will be largely symbolic since the reactor was disabled late last year under American supervision. U.S. officials expected that the declaration, which had been due at the end of last year, would provide details about North Korea's nuclear facilities and programs, including the amount of plutonium produced at its nuclear reactor in Yongbyon.

"I do think it's important to note that if we can verifiably determine the amount of plutonium that has been made, we then have an upper hand in understanding what may have happened in terms of weaponization," Secretary of State Condoleezza Rice said, after arriving in Kyoto, Japan, on Thursday for a Group of 8 meeting.

Ms Rice added that the declaration was "a natural step on the way to dealing verifiable with the devices or weapons themselves."

Partly to deflect criticism from hard-line critics in Washington that the current deal was too soft on North Korea, American officials have emphasized the importance of the information on plutonium. The North is believed to have produced enough weapons-grade plutonium at its reactor in Yongbyon to make as many as half a dozen bombs.

But, significantly, the North's declaration was not expected to reveal details on three critical points: the nuclear bombs the North has already produced; its alleged attempts to produce nuclear arms by secretly enriching uranium, which triggered the ongoing crisis in 2002; and accusations that the North helped Syria build a nuclear plant.

Some of the missing details, particularly on the North's existing nuclear bombs, are expected to be revealed at the next stage of the step-by-step agreement.

"Lyuba" gives scientists glimpse of mammoth insides

Russian scientists say they have obtained the most detailed pictures so far of the insides of a prehistoric animal, with the help of a baby mammoth called Lyuba found immaculately preserved in the Russian Arctic.

The mammoth is named after the wife of the hunter who found her last year. The body was shipped back to Russia in February from Japan, where it was studied using computer tomography in a process similar to one doctors use to scan patients.

"We could see for the first time how internal organs are located inside a mammoth. It is pretty important from a scientific point of view," said Alexei Tikhonov, deputy director of the Russian Academy of Science's Zoological Institute, who has been leading the project.

"Her internal organs were well preserved -- the heart was seen distinctly with all its ventricles and atria, as well as the liver and its veins," Tikhonov told Reuters.

"This is the best preserved specimen not only of the mammoth but of any prehistoric animal."

The mammoth species has been extinct since the Ice Age. Tests on Lyuba showed she was fed on milk and was three to four months old when she died 37,000 years ago in what is now the Yamalo-Nenetsk region in Russia's Arctic.

Scientists were excited by the find because, although her shaggy coat was gone, her skin was intact, protecting her internal organs from contamination by modern-day microbes.

Tikhonov said the computer tomography, which provided a sharp three-dimensional image of Lyuba's insides, revealed no injuries or fractures.

The scans showed her airways and digestive system were clogged with what scientists believe was silt, leading them to conclude that she must have drowned.

GENETIC MAP

Tikhonov, who heads the Zoological Museum in Russia's second city of St Petersburg, said Lyuba's contribution to science could be far bigger than thought up to now.

"If we take samples of Lyuba's tissues by biopsy, without unfreezing her, there is a big chance we can obtain promising results in genetics and microbiology," he said by telephone from St Petersburg.

"I believe the genetic map (of the mammoth) will be decoded within a year or two. As for (Lyuba's) practical use, we will have discovered methods of decoding the genetic map of any extinct prehistoric animals," he said.

"There were species that died out during the human era. And while I do not think someone would attempt to reproduce the mammoth, it would still make sense to bring back to life gigantic birds from Madagascar or New Zealand, or the Steller's sea cow (an extinct mammal), and so on and so forth."

Lyuba's body is stored in a purpose-built container that maintains sub-zero temperatures to prevent the prehistoric tissue from decomposing. She will soon be flown to Salekhard, capital of the Yamalo-Netnetsk region.

"She will be exhibited in Salekhard starting this summer," Tikhonov said. "A special glass-case with constant sub-zero temperatures has already been prepared for her."