www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

US EUROPE AFRICA ASIA 中文
World / US and Canada

'Ghostlike' octopus found in Pacific may belong to new species

(Agencies) Updated: 2016-03-07 10:33

NEW YORK - An underwater research craft has spotted a "ghostlike" octopus that appears to belong to a previously unknown species on the ocean floor near Hawaii, a discovery that highlights how little is known about the deep sea, a U.S. zoologist said on Saturday.

'Ghostlike' octopus found in Pacific may belong to new species

An incirrate octopod is shown at a depth of 4,290 meters taken by a remotely operated underwater vehicle Deep Discoverer near Necker Island, or Mokumanamana, on the northwestern end of the Hawaiian Archipelago in this image courtesy of NOAA Office of Ocean Exploration and Research, Hohonu Moana 2016, released on March 5, 2016.?[Photo/Agencies]

The milky white creature, nicknamed "Casper the Friendly Ghost" by Twitter users, was caught on cameras mounted on the craft as it explored the Pacific Ocean at a depth of 4,290 meters, or about 2-1/2 miles, the National Oceanic and Atmospheric Administration said.

Describing the animal as an incirrate octopod, one of two main groupings of octopods, NOAA said it was the first time an incirrate was spotted so deep in the ocean.

"This animal was particularly unusual because it lacked the pigment cells, called chromatophores, typical of most cephalopods, and it did not seem very muscular," said Michael Vecchione, a research zoologist at NOAA's National Marine Fisheries Service. Cephalopods belong to a biological class that includes octopuses, squid and cuttlefish.

"The deep sea is so poorly known that finding new or unexpected things happens fairly often," Vecchione said in an email, adding that he was excited by the images. "What is unusual is the opportunity to explore this deep."

The octopod "almost certainly" was one of a species never previously described by scientists, and it may well belong to a genus that has yet to be identified, wrote Vecchione, who is affiliated with the Smithsonian Institution in Washington, D.C.

To be certain, he said in the email, scientists would need at least one specimen, and preferably several of them.

NOAA has posted a video on the website showing a pale, rounded form with expressionless eyes and languid tentacles resting on the ocean floor. Its appearance led some Twitter users to say it resembled the cartoon character Casper the Friendly Ghost.

Last week's discovery came during the first dive of the 2016 season from the Okeanos Explorer, a ship operated by NOAA that explores little-known parts of the oceans.

The remotely operated underwater vehicle Deep Discoverer came across the octopod near Necker Island, or Mokumanamana, on the northwestern end of the Hawaiian Archipelago.

Trudeau visits Sina Weibo
May gets little gasp as EU extends deadline for sufficient progress in Brexit talks
Ethiopian FM urges strengthened Ethiopia-China ties
Yemen's ex-president Saleh, relatives killed by Houthis
Most Popular
Hot Topics

...
主站蜘蛛池模板: 99re6这里有精品热视频在线 | 亚洲最大看欧美片网站 | 久久亚洲国产高清 | 九九视频在线观看视频23 | 日韩欧美国产精品第一页不卡 | 国产精品亚洲天堂 | 欧美5g影院天天爽天天看 | 久久久精品在线观看 | 久久这里只有精品免费视频 | 鲁丝一区二区三区不属 | 欧美三区| 成人在线观看国产 | 性欧美在线 | 理论在线看| 91精品国产综合久久久久 | 三级毛片子 | 成人午夜性a一级毛片美女 成人午夜亚洲影视在线观看 | 国产精品国色综合久久 | 国产一区不卡 | 国产成人综合高清在线观看 | 日韩一区二区三区不卡视频 | 日本特级视频 | www.久草.com| 三级视频在线 | 美国一级毛片片aa免 | 欧美成人午夜做爰视频在线观看 | 国产精品伦理久久久久 | 久久成人免费大片 | 国语自产拍天天在线 | 99精品在线视频观看 | 99久久香蕉国产综合影院 | 黄色三级网站免费 | 在线播放国产真实女同事 | 午夜视频久久 | 人碰人操 | 欧美一区二区二区 | 玖草在线视频 | www.99精品| 免费看一级 | hd最新国产人妖ts视频 | 男女免费爽爽爽在线视频 |