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The Phantom Biosphere - An Alien Life-Form May Exist Hidden in Earth s Microbial World
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Massachusetts fish conservation project gets Sun Devil boost
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The history of life on Earth is largely microbial. “You can certainly run a world without dinosaurs and humans, but you can’t do it without microbes.’ says Harvard Fisher Professor of Natural History and Professor of Earth and Planetary Sciences, Andrew H. Knoll. “For vast stretches of time, bacteria and other single-celled organisms were the only life on Earth. The age of the dinosaurs to the present day,” Knoll said, represents roughly 5 percent of the history of life.”
“When we think about the history of life, we tend to think about dinosaurs or, if you’re really informed, trilobites. That’s just the tip of the iceberg,” Knoll said. “Not only were microbes the first living things on Earth, they were critical to the Earth’s transformation. The rise of photosynthetic bacteria called cyanobacteria was a crucial step because these bacteria ingested carbon dioxide and released oxygen.”
The Arizona State University Global Airborne Observatory on a coral reef mapping mission over the northern coast of Maui, Hawaii. (Center for Global Discovery and Conservation Science)
(CN) New technological advancements have allowed scientists to create detailed maps of the beautiful and highly endangered coral reefs of Hawaii, paving the way for important developments in conserving them.
In a study published Monday in the journal Proceedings of the National Academy of Sciences, researchers made groundbreaking progress by developing a new method of mapping corals from an airborne observatory.
Coral reefs are richly biodiverse hotspots, home to more than 25% of marine species, and are some of the oldest ecosystems we have today. They thrive in warm, sunny waters, and are nourished by the algae that lives in their soft tissue. The algae provides important nutrients, giving them their vibrant colors and attracting tons of sea creatures.