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Tag: "oldest" at biology news

Newly discovered birdlike dinosaur is oldest raptor ever found in South America

... and the rock layer it comes from represents the oldest interval of the Late Cretaceous," Apestegua says. "The rich fauna of this area, known as La Buitrera, includes other carnivorous dinosaurs, such as mid-sized abelisaurs and the gigantic Giganotosaurus. However, the most common animals are bulky herbi...

Ancient humans brought bottle gourds to the Americas from Asia

...he specimens studied by the team were not only the oldest bottle gourds ever found but also quite possibly the oldest plant DNA ever analyzed. The newest of their archaeological samples, a specimen found in Kentucky, w...

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

...ned a date of 40,000 years ago, in contrast to the oldest accepted human fossil from the Americas, an 11,500-year-old skull. This makes the rock "one of the most important areas in the study of early human occupation in the Americas and would support a much earlier human migration than is currently accepted...

Hot-spring bacteria flip a metabolic switch

...evolved about three billion years ago, and are the oldest organisms on the planet that can turn solar energy and carbon dioxide into sugars and oxygen via photosynthesis. In fact, ancient cyanobacteria produced most of the oxygen that allows animals to survive on Earth. Cyanobacteria such as Synechococcus ...

Predators keep the world green, ecologists find

...ir findings confirm the answer to one of ecology's oldest and thorniest questions: why is the world green? It also seems to put to rest a competing theory that plants protect themselves from herbivores through physical and chemical defenses. The researchers drew their conclusions from study of a Venezuelan...

FSU biologist says new dinosaur is oldest cousin of Tyrannosaurus rex

...ee by about 100 million years. That makes them the oldest known as well as the most primitive tyrannosauroid fossils ever found. The discovery of the oldest tyrannosaurs is described in the journal Nature on Feb. 9. Erickson co-authored the paper with seven...

The diversity of marine life in the Gulf of Maine region is much greater than previously thought

...ms. (Cerullo, M., 1999, Sea Soup, p. 14). The oldest described species in the register is from 1753, a green alga called Ulva lactuca, commonly known as sea lettuce. The newest organisms to science are five species of flatworms which were described in 2003. Recent and planned exploration of the New E...

Contaminants linked to sturgeon decline in Columbia river

...nt in the reservoir behind the Bonneville Dam, the oldest dam on the river. "We believe that some contamin...hesis. "Fish residing in the reservoir behind the oldest dam had the highest contaminant loads," Feist added, "and exhibited reduced growth and reproductive ...

FDA approves first medical device using rutgers biomaterial

... Established in 1766, Rutgers is America's eighth oldest institution of higher learning and one of the nation's premier public research universities. TyRx Pharma, Inc. designs, develops and commercializes innovative combination medical devices and drug delivery products using patent protected tyrosine-der...

Healing honey: The sweet evidence revealed

...ntial evidence demonstrates that honey, one of the oldest healing remedies known to medicine, produces effective results when used as a wound dressing. A review article in the most recent issue of SAGE Publications' International Journal of Lower Extremity Wounds summarizes the data. Scientists performed 2...

Ancient global warming drove early primates' dispersal

...primate. In both Asia and Europe, the genus is the oldest known primate; in North America, it appears in the fossil record around the same time as another primate, Cantius. Previously, scientists had come up with four ways to explain the geographic distribution pattern. The first is that primates origina...

New flood-tolerant rice offers relief for world's poorest farmers

...tand flooding, thusovercoming one of agriculture's oldest challenges and offering reliefto millions of poor rice farmers around the world. While rice thrives in standing water, like all crops it will die ifcompletely submerged for more than a few days. The development andcultivation of the new varieties i...

Wasps queue for top job

...ze of being the queen or breeder in the group. The oldest female almost always becomes the next breeder. The wasps in this queue face a fundamental trade-off: by working harder, they help the group as a whole and as a result indirectly benefit themselves, but they simultaneously decrease their own future su...

Eminent inventor of DNA fingerprinting gains new recognition

...(named after the father of Alfred Heineken) is the oldest of the Heineken Prizes and has been awarded since 1964. Previous prizewinners include Christian de Duve (winner of the 1974 Nobel Prize for Medicine), Michael Berridge, Piet Borst, Paul Nurse (2001 Nobel Prize for Medicine), James Rothman and Andrew ...

Tamed 11,400 years ago, figs were likely first domesticated crop

...han previously thought, making the fruit trees the oldest known domesticated crop. Ofer Bar-Yosef of Harvard University and Mordechai E. Kislev and Anat Hartmann of Bar-Ilan University report their findings in this week's issue of the journal Science. "Eleven thousand years ago, there was a critical switc...

Oldest animal fossils may have been bacteria

...ur understanding of microfossils thought to be the oldest animals," said lead author Jake Bailey, a graduate student in earth sciences at the University of Southern California. Bailey made his discovery by combining two separate findings about Thiomargarita, the world's largest known living bacterium. I...

Finding an answer to Darwin's Dilemma

.... Narbonne and his research team found the world’s oldest complex life forms between layers of sandstone on ... accumulated in Avalon. "Our studies show that the oldest sediments on the Avalon Peninsula, which completely lack animal fossils, were deposited during a tim...

From hot springs to rice farms, scientists reveal new insights into the secret lives of archaea

... Although archaea are believed to be among the oldest organisms on Earth, finding paleontological evidence of these ancient microbes has proven elusive. At the AGU session, G. Todd Ventura of the University of Illinois-Chicago will describe what may be the earliest archaean fossil evidence yet discover...

Two studies on bee evolution reveal surprises

...lion-year old bee embedded in amber -- perhaps the oldest bee ever found -- "pushes the bee fossil record back about 35 million years," according to Bryan Danforth, Cornell associate professor of entomology. Danforth and George Poinar of Oregon State University found the bee embedded in amber from a mine i...

Twenty of world's 162 grouper species threatened with extinction

...ciated with coral reefs. Groupers are among the oldest fish on coral reefs, with some species reaching more than 50 years old. Several species only reach reproductive maturity later in life, making them particularly vulnerable to fishing before they mature. In addition, commercial fishing that targets re...

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