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CNN — You have probably seen leaf-cutter ants carrying bits of plants, maybe in a nature documentary, at a science museum or in the “Circle of Life” song at the beginning of the 1994 Disney animated film “The Lion King.” Those ants don't eat the leaves — instead they bring them back to their nests to feed a garden of fungi, which produce food for the ants. Researchers have now used DNA analysis to uncover just how long ants have been farming fungi, [...]

The threads and microplastic pieces were discovered in the olfactory bulb, the part of the nose responsible for detecting odors that sits at the base of the brain. “Once present in this structure, there can be translocation to other regions of the brain,” said lead study author Luís Fernando Amato-Lourenço, a postdoctoral microplastics researcher at the Free University of Berlin, in an email. “Translocation depends on several factors, including the shape of [...]

By Katie Hunt, CNN A plant-eating sauropod that lumbered around what’s now China some 162 million years ago had a neck that was about 10 feet longer than a typical school bus — and the longest of any known dinosaur. The creature’s 49.5-foot-long (15.1-meter) neck would have allowed it to stand in one spot and hoover up the surrounding vegetation — maximizing the amount of food it consumed while conserving energy. The fossilized remains of the dinosaur, called [...]

(CNN) Recent telescope data revealed that a small planet in the far reaches of our solar system has a dense ring round it. And scientists are baffled as to why. The planet, Quaoar, is one of roughly 3,000 small planets that orbit the sun beyond Neptune, and at 690 miles (1,110-kilometers) wide, it's about the seventh largest, with Pluto and Eris ranking as the biggest. Observations of Quaoar made between 2018 and 2021 revealed that the planet has a ring sitting farther away from it [...]

Recent telescope data revealed that a small planet in the far reaches of our solar system has a dense ring round it. And scientists are baffled as to why. The planet, Quaoar, is one of roughly 3,000 small planets that orbit the sun beyond Neptune, and at 690 miles (1,110-kilometers) wide, it’s about the seventh largest, with Pluto and Eris ranking as the biggest. Observations of Quaoar made between 2018 and 2021 revealed that the planet has a ring sitting farther away from it than [...]

(CNN) - Two new colorful species of fish have been found in Brazil's Amazon Basin -- and they are already at risk of disappearing due to extinction. The fish belong to a subfamily called South American darters. The discovery brings the known number of darter species to five. One species, Poecilocharax callipterus, is distinguished by its long, striking red-orange fins and a dark spot at the base of its tail. The other new species, Poecilocharax rhizophilus is the most [...]