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These jellyfish aren't just drifters

Jellyfish might look like mere drifters, but some of them have a remarkable ability to detect the direction of ocean currents and to swim strongly against them, according to new evidence in free-ranging barrel-jellyfish ...

Jan 22, 2015
4.5 / 5 (2) 1

Good news and bad news for coral reefs

Some good news for coral reefs: In 2014, President Obama expanded the Pacific Remote Islands Marine National Monument in the central Pacific from about 87,000 square miles to 308,000 square miles. The Monument ...

Feb 10, 2015
5 / 5 (1) 0

Mercury levels in Hawaiian yellowfin tuna increasing

Mercury concentrations in Hawaiian yellowfin tuna are increasing at a rate of 3.8 percent or more per year, according to a new University of Michigan-led study that suggests rising atmospheric levels of the toxin are to blame.

Feb 02, 2015
2.8 / 5 (24) 5

Biology trumps chemistry in open ocean

Single-cell phytoplankton in the ocean are responsible for roughly half of global oxygen production, despite vast tracts of the open ocean that are devoid of life-sustaining nutrients. While phytoplankton's ...

Nov 24, 2014
5 / 5 (7) 3