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Scientists prove that Jellyfish sleep Photo

Scientists prove that Jellyfish sleep

In a paper published last week in the journal Current Biology, scientists have shown that at least some jellyfish sleep. This discovery is noteworthy as jellyfish are simple organisms that do not have brains, but rather a network of nerves. To prove that the jellyfish they were studying sleep, the scientists needed to prove three behavioral criteria, which they did.

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An astronaut in Guadalupe Photo

An astronaut in Guadalupe

A lot of people go to Guadalupe every year, a lot of very interesting people. Most people are divers, and some are non-divers that want to check “seeing-a-great-white-shark-underwater” off their bucket list. And then there are some that are a little of both. A few weeks ago astronaut Terry Virts headed to Guadalupe aboard the Somar V to film some great whites in 360 and from the air, as well as check something off his bucket list.

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Call for entries: World Shootout 2017 Photo

Call for entries: World Shootout 2017

The World Shootout is calling for entries. The contest is offering prizes, including dive trips, gear and cash for photographers in 8 categories including: Amateur, Wide Angle, Macro, Fish & Fashion and Sharks. Images can be from anywhere in the world, but must have been taken between 2 November 2016 and 1 November 2017. The deadline for registration and entry is 1 November, please see the contest’s website for full rules and registration details.

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Populations of sea turtles are recovering worldwide Photo

Populations of sea turtles are recovering worldwide

In a study published this week in Science Advances, a team of international scientists analyzed publicly available data on seven species of sea turtles around the world in time frames that ranged from 6 to 47 years of data. They found that the populations of six of these species are increasing. In some cases conservation efforts date back to the 1950s, and the threats to their survival are clear and efforts are being made to manage them.

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