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Tag: thrived

Lichens thrived, diversified after the dinosaurs died out

Lichens thrived, diversified after the dinosaurs died out

Science
June 28 (UPI) -- The dinosaurs were the most famous victim of the asteroid that struck Earth some 66 million years ago, but the mass extinction event also killed off a variety of plants and animals. According to a new study, the loss of plant life created space for lichens to diversify and thrive. Lichens are composite organisms formed by symbiotic relationships between algae or cyanobacteria and different fungi species. "We thought that lichens would be affected negatively, but in the three groups we looked at, they seized the chance and diversified rapidly," Jen-Pang Huang, a former postdoctoral researcher at the Field Museum in Chicago, said in a news release. "Some lichens grow sophisticated 3D structures like plant leaves, and these ones filled the niches of plants that died out." T...
Study: Humans in South Africa thrived during Toba super-volcanic eruption

Study: Humans in South Africa thrived during Toba super-volcanic eruption

Science
March 12 (UPI) -- The Toba super-volcanic eruption that occurred 74,000 years ago significantly altered Earth's atmosphere and ecosystems around the planet, yielding hardship for most species, including humans.But new research suggests that hunter-gatherers living on the coast of Southern Africa thrived in the wake of the massive eruption.When Mount Toba, located in Indonesia, erupted some 74,000 years ago, the volcano spewed rock, gas and tiny glass fragments called cryptotephra into the atmosphere. These hook-shaped glass particles, identifiable under a microscope, spread across the globe.While analyzing sediment from an archaeological site called Pinnacle Point near the town of Mossel Bay, South Africa, scientists found a shard of Toba glass. When formed, cryptotephra trap a chemical si...