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Rapid changes in the Arctic ecosystem

(Phys.org)—Huge quantities of algae are growing on the underside of sea ice in the Central Arctic: in 2012 the ice algae Melosira arctica was responsible for almost half the primary production in this area. When the ice ...

New fossils suggest ancient origins of modern-day deep-sea animals

A collection of fossil animals discovered off the coast of Florida suggests that present day deep-sea fauna like sea urchins, starfish and sea cucumbers may have evolved earlier than previously believed and survived periods ...

Low calcification in corals in the Great Barrier Reef

Reef-building coral communities in the Great Barrier Reef-the world's largest coral reef-may now be calcifying at only about half the rate that they did during the 1970s, although live coral cover may not have changed over ...

Sea cucumbers could be key to preserving coral reefs

(PhysOrg.com) -- Tropical sea cucumbers could play a key role in saving coral reefs from the devastating effects of climate change, say scientists at One Tree Island, the University of Sydney's research station on the Great ...

Sea cucumbers: Dissolving coral reefs?

Coral reefs are extremely diverse ecosystems that support enormous biodiversity. But they are at risk. Carbon dioxide emissions are acidifying the ocean, threatening reefs and other marine organisms. New research led by Carnegie's ...

Regenerative powers in the animal kingdom explored

Why can one animal re-grow tissues and recover function after injury, while another animal (such as a human being) cannot? This is a central question of regenerative biology, a field that has captured the imagination of scientists ...

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