Colorful corals protect the algae inside

first_imgEcologists have long wondered how two coral reefs—sitting right next to each other in the ocean—can be drastically different shades of color. The answer, according to a new study, has to do with some intriguing genetics. By sequencing three colonies of Acropora millepora, a branching stony coral obtained from the waters of Fiji, scientists have discovered that instead of having one gene that controls pigment production, these corals harbor multiple copies of the same gene. The more genes the corals activate, the greater their strength of color, researchers report online this month in Molecular Ecology. The same pigments that are essential for the corals’ color are also important for protecting the algae that live inside the corals, the team reports. Algae require some sunlight to survive, but too much light kills them. To protect the algae, which provide them with essential nutrients, the corals that are exposed to the most sunlight invest the sun’s energy into producing more pigment and thus appear brighter; this prevents too much sunlight from reaching the algae.last_img read more

Twitter Bug Accidentally Exposed iOS Users Location Data to Third Party

first_imgStay on target Elon Musk’s Cheeky ‘Nuke Mars!’ Post Is Taking Over TwitterTwitter Tests Subscribe-to-Replies Feature Twitter “inadvertently” collected location data from some iOS users and shared it with an unnamed advertising partner.A bug, which targeted multi-account holders who opted into precise location tracking, has been patched.“You trust us to be careful with your data, and because of that, we want to be open with you when we make a mistake,” the social network said in an apologetic post.Twitter revealed on Tuesday that it “accidentally” shared location data with a trusted partner after failing to remove it from reports sent to the business during an advertising process known as real-time bidding.The expunging of private information “did not happen as planned,” according to the company, which assured users that technical measures obscured data, so it was no more precise than a zip code or city.“This location data could not be used to determine an address or to map your precise movements,” Twitter said.In an attempt to further assuage its community, the firm claims its unidentified partner did not gain access to unique IDs or other profile information.The shared location data was held by the associate for only a short time, before being deleted as part of their normal process.“We have fixed this problem and are working hard to make sure it does not happen again,” Twitter wrote.Folks whose accounts were impacted by this breach should have received some sort of communication from Twitter, as well.“We’re very sorry this happened,” the post said. “We recognize and appreciate the trust you place in us and are committed to earning that trust every day.”It remains unclear how long the company was collecting information and how many people were affected.Early this year, Twitter fixed a four-year-old bug that exposed the protected tweets of some Android users.More on Geek.com:Twitter Now Lets You Add GIFs, Photos, Videos to RetweetsYou Can Now Follow Only 400 Accounts Per Day on TwitterNew Twitter Camera Makes Capturing Breaking News Easierlast_img read more