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Tag: "mexico" at biology news

Scientists find evidence of catastrophic sand avalanches, sea level changes in Gulf of Mexico

Identical twins lose some fundamental similarities as they grow older, a new study reports. . .. .. Scientists think that chemical exposure, dietary h...

Genetically modified maize not found in southern Mexico

Contrary to what many scientists thought, genetically modified (GM) corn has not yet spread to native maize crops in southern Mexico. .. . The finding surprised the researchers, said Allison Snow, a professor of evolution, ecology and organismal biology at Ohio State University . She helped lead the study that appears online this week in the Early Edition of the Proceedings of the National Aca...

Retinal scans eyed for New Mexico show cattle

It sounds like science fiction, but New Mexico State University researchers are testing advanced eye-scanning technology on cattle as part of a national tracking system for animal health. . .. Each retina, whether bovine or human, is unique and a scan is considered one of the most accurate forms of identification,...

Alleged 40,000-year-old human footprints in Mexico much, much older than thought

Alleged footprints of early Americans found in volcanic rock in Mexico are either extremely old - more than 1 million years older than other evidence of human presence in the Western Hemisphere - or not footprints at all, according to a new analysis published this week in Nature. . .. Earlier this year, researchers in England touted these "footprints" as definitive...

HIV/AIDS rates in Tijuana, Mexico increasing at alarming rate

A study by researchers at the University of California, San Diego (UCSD) School of Medicine indicates that the rate of HIV/AIDS infection in Tijuana, Mexico is increasing, and much higher than had been previously estimated. The findings are based on data compiled by a team of researchers working in San Diego and Mexico to create a population-based model in order to estimate HIV infection rates....