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Bothriolepis, an armored, bottom-dwelling placoderm related to some of the earliest jawed vertebrates to appear in the record, lived mostly at the coasts. Credit: Nobumichi Tamura.

Coral reefs are one of the most biodiverse environments on the planet and for years scientists have suspected that the origins of vertebrate life may have started there. However, a new study published in Science last week has provided a wealth of evidence to suggest that the earliest fish species originated in shallow waters instead.

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© Christoffer Boström/Åbo Akademi University

In a new study spanning coastal areas of the Northern Hemisphere, a coordinated researcher network explored the magnitude of organic carbon stocks stored and sequestered by eelgrass (Zostera marina) meadows--the most abundant seagrass species in temperate waters.

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The Three Gorges Dam, the largest hydroelectric power station in the world and just one of four main dams situated along the Yangtze river. Credit: Reuters.

The damming of the Yangtze river in 1981 has had a detrimental effect on migrating sturgeon fish, according to Zhenli Huang and Luhai Wang, scientists at the China Institute of Water Resources and Hydropower Research.

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Europa. The name of Jupiter's icy moon has spread around the world as a hopeful candidate for life elsewhere in our solar system. If it's there, a new NASA-funded research alliance called Oceans Across Space and Time wants to find it. CREDIT: NASA handout/Britney Schmidt/Dead Pixel VFX/Univ. of Texas at Austin

NASA Astrobiology Program awards $7 million to Georgia Tech-led Oceans Across Space and Time alliance to intensify the search for life in our solar system's present and past oceans

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Hypselodoris katherinae (Terry Gosliner © 2018 California Academy of Sciences)

This National Sea Slug Day (October 29), scientists celebrated the addition of 17 new species of nudibranch to the tree of life. Adorned in lavish patterns and colors that range from yellow polka dots to shades of mauve and neon blue, the new marine invertebrates hail from coral reefs across the Indo-Pacific region.

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