First-ever Americans arrived 20,000 years earlier than we thought – and came by BOAT
Charlotte Edwards, Digital Technology and Science Reporter
17:22, 3 Jun 2021
Updated: 18:37, 3 Jun 2021
THE FIRST humans to set foot on the North American continent could have arrived 30,000 years ago, according to new evidence.
That s 20,000 years earlier than previously thought.
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Animal bones were used to make the discoveryCredit: Andrew Somerville/ISU
Researchers at Iowa State University in the US claim to have made the history changing discovery in the Tehuacan Valley of Mexico.
They were originally there to study the origins of farming in that area.
Andrew Somerville, an assistant professor of anthropology in world languages and cultures at ISU, found evidence of early human occupation at the Coxcatlan Cave archaeological site.
catnip
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Also used as a verb: to catnip someone , to sell them catnip instead of ganjia.
Sat Mar 10 2001 at 1:26:32
Catnip (Nepeta cataria) is a hardy perennialherb attractive to cats. Also known as cat-mint or catnep, it belongs to the mint family. The whole cat family (Felidae) reacts to catnip. These animals will become playful by rolling over, rubbing their faces, extending their claws, and dooing body twists when they smell catnip s pungent odor. It is speculated that the oil from the leaves of catnip excites cats because it contains a chemical called trans-neptlactone, which closely resembles an excretion in a female cat s urine.
Mar 17, 2021
Researchers at Iowa State University recently received a $1 million grant from the U.S. Department of Agriculture’s National Institute of Food and Agriculture to study how manure management systems in livestock production affect the development of bacteria capable of resisting antibiotics. The effort builds on previous research the scientists have conducted to determine how livestock production interacts with other complex factors, such as environmental processes, to contribute to antibiotic resistance.
Antibiotic resistance is the process by which disease-causing bacteria develop the ability to protect themselves against medications used to stop them. Antibiotic resistance poses a growing threat to human, animal and environmental health because the speed of resistance currently outstrips the speed with which new antibiotics are being developed, said Adina Howe, an assistant professor of agricultural and biosystems engineering and principal investigator on the grant.
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Data shows monarch population shrinking despite recovery effort
Monarchs on milkweed. (ISU photo)
Researchers at Iowa State University say the continent’s monarch populations appear to be shrinking, despite vigilant efforts in Iowa and elsewhere to help the fragile butterflies recover their numbers.
Steve Bradbury, an ISU entomology professor, says the survey released last month of overwintering monarchs in Mexican forests dropped about two acres from a year ago.
“It was at about five acres of occupied forest canopy and our long-term goal is 15 acres,” Bradbury says. “People were hoping they were going to go up but weather conditions during different parts of the migration, especially the spring migration, knocked the numbers down in the U.S. and that sort of cascades.”
Mar 16, 2021
Researchers at Iowa State University recently received a $1 million grant from the U.S. Department of Agriculture’s National Institute of Food and Agriculture to study how manure management systems in livestock production affect the development of bacteria capable of resisting antibiotics. The effort builds on previous research the scientists have conducted to determine how livestock production interacts with other complex factors, such as environmental processes, to contribute to antibiotic resistance.
Antibiotic resistance is the process by which disease-causing bacteria develop the ability to protect themselves against medications used to stop them. Antibiotic resistance poses a growing threat to human, animal and environmental health because the speed of resistance currently outstrips the speed with which new antibiotics are being developed, said Adina Howe, an assistant professor of agricultural and biosystems engineering and principal investigator on the grant.