World Bulletin / News Desk
The first naturally fluorescent frog was discovered recently in Argentina -- almost by chance, a member of the team of researchers told AFP Thursday.
Argentine and Brazilian scientists at the Bernardino Rivadaiva Natural Sciences Museum made the discovery while studying the metabolic origin of pigments in a tree-frog species common to South America.
Under normal light the frog's translucent skin is a muted yellowish-brown color with red dots, but when the scientists shone an ultraviolet light on it, it turned a celestial green.
According to one of them, Carlos Taboada, the case is "the first scientific record of a fluorescent frog."
"We were very excited," said his fellow researcher Julian Faivovich. "It was quite disconcerting."
He said the discovery "radically modifies what is known about fluorescence in terrestrial environments, allowing the discovery of new fluorescent compounds that may have scientific or technological applications."
It also "generates new questions about visual communication in amphibians," he said.
The team studied some 200 more examples to ensure the phenomenon was not due to the frog's captivity, and detected the fluorescent properties in all the specimens.
Maria Lagorio -- an independent researcher and expert in fluorescence, who the research team contacted after the discovery -- told AFP that the trait is common in aquatic species and seen in some insects, "but has never been scientifically reported in amphibians."
Laboratory tests conducted to ascertain exact cause of deaths in north central Kogi state, health official says
Health official decries lack of funds to fight malaria, appeals for donations to help fight disease
Surge in heroin use, other opioids seen as main reason for increased deaths
A separate 40-year-old male was returned to the zoo in Rajshahi where there are only females.
Millions of eggs have been pulled from supermarket shelves across Europe and dozens of poultry farms closed since the discovery of fipronil, which can be harmful to humans, was made public on August 1.
An immediate cull was ordered for all chicken, ducks and quail within a kilometre (0.6 miles) of the infected poultry in San Luis town, north of Manila, said Agriculture Secretary Emmanuel Pinol.
Heat due to long-term temperature rise, strong El Nino, report says
Multimillion dollar project aims at turning dirty riverbanks of Addis Ababa into attractions
Dutch authorities have temporarily closed 138 poultry farms and may cull millions of chickens.
Recalls in Germany, Netherlands and Belgium and criminal inquiry launched as tests show high levels of insecticide profile
WHO has recorded 419,804 suspected cholera cases in Yemen since April 27
More than 10,000 people had to flee raging fires in southern France this week, and several villages were evacuated in Portugal just weeks after another blaze killed more than 60 people there.
WHO says 396,086 suspected cholera cases have been recorded in Yemen
Japan has the highest suicide rate among Group of Seven (G7) advanced countries and the government describes the situation as "critical" in a country where more than 20,000 people kill themselves every year.
At present people have no option but to take lifelong, daily doses of anti-retroviral therapy (ART) which keeps the HIV virus under control, but does not kill it.