New Discovery About Genes Has Implications For Genetic Therapy
...ntrons appears very primitive, as if they were the ancestors of introns found in higher organisms." Lambowitz believes that the introns are "parasites" on the genome, and behave similar to the way retroviruses inhabit an organism. He suggested that retroviruses might even have evolved originally from these...Duke Primate Center Sets October Expedition To Find 'Juliet'
...onkeys," are descended from primates thatalso were ancestors to the anthropoids, a suborder that includes monkeys,apes and humans. Thus, studying prosimians can yield insights into the earlyhistory of human ancestors. Lemurs, isolated on Madagascar for more than 50 million years, evolved intonearly 50 species...'Juliet' Evades Primate Center Expedition
...onkeys," are descended from primates thatalso were ancestors to the anthropoids, a suborder that includes monkeys,apes and humans. Thus, studying prosimians can yield insights into the earlyhistory of human ancestors. Lemurs, isolated on Madagascar for more than 50 million years, evolved intoalmost 50 species...NCAR Scientist Models Earth's Climate and Vegetation Patterns At Last Glacial Peak
...imate and vegetation to find which plant types our ancestors would have wandered among during the last glacial maximum (LGM) 21,000 years ago. Felzer presented his work on Wednesday, October 30, at the annual meeting of the Geological Society of America in Denver. These models present a world blanketed by mass...New Evidence For Corn's Ancestry Could Lead To Insect And Drought Resistant Crops
...ever, Mangelsdorf once believed one of corn's true ancestors was Tripsacum ,a grass that ranges throughout North and South America. "It's a pervasiveweed around here," Eubanks said. "It's on roadsides, railroadtracks and bridges." The Tripsacum plant resembles corn less than teosinte does. Butboth grasses ...Colorado State Anthropologist Finds Fossil Treasures In Africa
...wbone of a juvenile primate believed to be ancient ancestors of present-day baboons. The vast collection of fossils is one of the few uncovered in Botswana and contains well-preserved specimens of small mammals thatmay have roamed the earth sometime between 100,000 and 3 million years ago. Most likely used by...Duke Lemurs Are Released In Madagascar
...emur release project to the ancestorsand asked the ancestors for their blessing," wrote Welch in an e-mailedreport. "Short speeches were made and everyone took a sip of the localhome-made rum, held in a folded leaf. Three leaves were left full of rumin a pile of stones at the base of the release cage. "The ce...SFSU Biologist Deciphers Desert Animals' Whistles And Drumbeats
...developed by the gerbils. Interestingly, our early ancestors probably underwent a similar sequence of developments out on the African plains: daytime activity, group living, complex communication supporting cooperation. This is widely thought to be the pattern that, along with greatly increasing brain size, le...... to indicate that Lucy and other early known human ancestors walked with greater ease and efficiency than previously believed, despite their short legs. Conventional thought among paleoanthropologists has been that the short-legged australopithecines, such as Lucy, were primitive or ape-like and hominids devel...Births Of Rare Lemurs At Duke Primate Center
...s descended from primitive primates that were also ancestors toanthropoids, which includes monkeys, apes and humans. Thus, by studyingprosimians, scientists can obtain analogous insights into the early history ofapes and humans. ----- The Primate Center has launched a "Name the Aye-aye" contest...Gene Study Shows Mammals Lived Before Extinction Of The Dinosaurs
...st about everyone agrees on the datewhen reptilian ancestors of birds and mammals appeared because it is based onwell-accepted studies of fossils." Using this date as a secure calibrationpoint--and the mutation rate for each of the constant-rate genes as a timingdevice--the researchers were able to determine ...New Fossil Discoveries Clinch Ancient Age Of Human Ancestor
... picture of evolution for hominids -- the ancient ancestors on the human family tree. "We don't yet have any convincing evidence early in the fossil record of multiple hominid species," Walker says. "The simplest explanation for the hominid fossil record from 4.5 to 3 million years ago is that there is...Fish Farmers Must Learn Zebra Mussel Prevention From A To Z
...o other potential problems: Some of their European ancestors harbor organisms that can cause diseases in fish, and their American offspring may, too. Also, a fish farm contaminated with zebra mussels could conceivably face quarantine measures or restrictions on where live fish could be shipped. Because chemica...Duke Researchers Call Gene Therapy A Promising Strategy For Sickle Cell Anemia
...ited disease that is most common amongpeople whose ancestors come from Africa and the Middle East. About one in 12African Americans carries the sickle cell trait. The red blood cells of peoplewith sickle cell disease contain an abnormal type of hemoglobin, the moleculethat carries oxygen throughout the body. T...Priestly Gene Shared By Widely Dispersed Jews
...ofwhich carries representation from many different ancestors on both the maternaland paternal lineages. Accordingly, since the Jewish priesthood designation istransmitted from father to son, the DNA of the founding ancestor is reflected inthe Y-chromosome markers of modern-day Jewish priests. To date ...Ancient 'Volcanic Winter' Tied To Rapid Genetic Divergence In Humans
... all look like Africans? "When our African recent ancestors passed through the prism of Toba'svolcanic winter, a rainbow of differences appeared," Ambrose said....Possible Human Ancestors In Spain 780,000 Years Ago
Paleomagnetic dating indicates possible human ancestors lived in Spainmore than 780,000 years ago, says U-...tains of northern Spain. Whether they were direct ancestors of modern Homosapiens or an evolutionary dead end like the Neanderthals is for anthropologiststo dec...Genetic Uniqueness Threatens Florida Manatee's Future
...da waters in the last10,000 years. With only a few ancestors to start with, today's manateescould be faced with inbreeding problems, making it harder for the speciesto cope. Despite the manatee's ability to swim large stretches of water, thepopulations tend to stay put because of their dependence on specificha...Fat In Spite Of Hard Farm Work - Tracking Down Obesity
..., a strictly conservative religiouscommunity whose ancestors in the 18th century immigrated from Germany andSwitzerland mainly to the US states of Ohio and Pennsylvania. Even today theAmish are still cultivating a religious, ascetic lifestyle and strictly rejectmodern technology. For Petra Platte it is clear t...The ancestors of major groups of animal species began populating...st about everyoneagrees on the date when reptilian ancestors of birds and mammals appearedbecause it is based on well-accepted studies of fossils." Using this d...