Underwater Kingdoms Coral reefs are underwater ecosystems made from the skeletons of hard coral colonies. Each colony is composed of multiple polyps called corals—animals with tentacles around a mouth at one end and sac-like bodies at the other that attach to a surface and secrete calcium carbonate for protection. Over thousands of years, these secretions accumulate to form habitats that support about 25% of marine species, even though they cover less than 1% of the ocean floor. > The first coral reefs formed hundreds of millions of years ago. ( More , w/video) > Coral polyps are tiny animals whose mouths both consume food and expel waste. ( More ) > See how coral reefs get their color. ( More ) Known as the "rainforest of the seas," coral reefs are found in tropical and subtropical waters of more than 100 countries, wi...
By Ray Birch WASHINGTON—NCUA nominee John Crews used his Senate Banking Committee confirmation hearing Thursday to lay out an agenda centered on reducing regulatory burden for smaller credit unions, encouraging technological innovation and reviving the formation of new credit unions, while declining to weigh in on the legality of the NCUA's current one-member board because of pending litigation. Although much of the hearing was dominated by sharp questioning of fellow nominee Christopher Phelan over the economy, inflation, tax policy and President Trump's agenda, Crews' exchanges with senators offered insights into how he might approach regulating the credit union system if confirmed. The hearing proceeded despite questions on Capitol Hill over whether it would even take place following Wednesday's political turmoil surrounding President Trump's demand that Congress pass the SAVE America Act before he signs bipartisan housing legislation and the Senate's decisio...