Tiny, long-lost primate rediscovered in Indonesia

On a misty mountaintop on the Indonesian island of Sulawesi, scientists for the first time in more than eight decades have observed a living pygmy tarsier, one of the planet's smallest and rarest primates.

Over a two-month period, the scientists used nets to trap three furry, mouse-sized pygmy tarsiers -- two males and one female -- on Mt. Rore Katimbo in Lore Lindu National Park in central Sulawesi, the researchers said on Tuesday.

They spotted a fourth one that got away.

The tarsiers, which some scientists believed were extinct, may not have been overly thrilled to be found. One of them chomped Sharon Gursky-Doyen, a Texas A&M University professor of anthropology who took part in the expedition.

"I'm the only person in the world to ever be bitten by a pygmy tarsier," Gursky-Doyen said in a telephone interview.

"My assistant was trying to hold him still while I was attaching a radio collar around its neck. It's very hard to hold them because they can turn their heads around 180 degrees. As I'm trying to close the radio collar, he turned his head and nipped my finger. And I yanked it and I was bleeding.
The collars were being attached so the tarsiers' movements could be tracked.

Tarsiers are unusual primates -- the mammalian group that includes lemurs, monkeys, apes and people. The handful of tarsier species live on various Asian islands.

As their name indicates, pygmy tarsiers are small -- weighing about 2 ounces (50 grammes). They have large eyes and large ears, and they have been described as looking a bit like one of the creatures in the 1984 Hollywood movie "Gremlins."

They are nocturnal insectivores and are unusual among primates in that they have claws rather than finger nails.

They had not been seen alive by scientists since 1921. In 2000, Indonesian scientists who were trapping rats in the Sulawesi highlands accidentally trapped and killed a pygmy tarsier.

"Until that time, everyone really didn't believe that they existed because people had been going out looking for them for decades and nobody had seen them or heard them," Gursky-Doyen said.

Her group observed the first live pygmy tarsier in August at an elevation of about 6,900 feet.

"Everything was covered in moss and the clouds are right at the top of that mountain. It's always very, very foggy, very, very dense. It's cold up there. When you're one degree from the equator, you expect to be hot. You don't expect to be shivering most of the time. That's what we were doing," she said.

Source: Yahoo news

Pregnancy pounds predict kids' weight as teens

Women who gain too much weight during pregnancy may not only have bigger babies, but bigger teenagers as well, a study suggests.

Researchers at Harvard Medical School found that among nearly 12,000 children and teenagers they studied, those whose mothers gained more than the recommended amount of weight during pregnancy were 42 percent more likely to be obese.

The risk was independent of other factors the researchers examined, including mothers' pre-pregnancy weight, family income and parents' education.

Some past studies have linked excessive weight gain during pregnancy to a higher risk of obesity in childhood. These latest findings add to evidence that the fetal environment may have a "sustained effect" on children's weight regulation, Dr. Emily Oken and colleagues report in the journal Obstetrics & Gynecology.

For women, they say, the study underscores the importance of going into pregnancy at a healthy weight, and then gaining only the recommended amount.

In the U.S., the Institute of Medicine (IOM) suggests that normal-weight women gain 25 to 35 pounds during pregnancy. Women who were overweight before becoming pregnant are encouraged to gain a little less -- 15 to 25 pounds -- while underweight women should put on 28 to 40 pounds.

The current study included 11,994 children between 9 and 14-years olds whose mothers were part of the Nurses Health Study II, a long-range health study of female nurses from across the U.S. The researchers found that 6.5 percent of the children were obese.

Oken's team found that when mothers exceeded the IOM guidelines for pregnancy weight gain, their children's weight also tended to climb.

Compared with their peers whose mothers followed the IOM guidelines, those whose mothers gained too much weight were 42 percent more likely to be obese by the time they were 9-to-14 years old.

Researchers suspect that excess pregnancy pounds may affect fetal development in a way that makes children more susceptible to excessive weight gain.

Animal research has found that overeating during pregnancy alters the expression of genes involved in fat regulation in offspring, and seems to affect the appetite-control centers of their brains as well.

SOURCE: Obstetrics & Gynecology, November 2008.