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{"id":3834,"date":"2011-02-01T00:00:23","date_gmt":"2011-02-01T08:00:23","guid":{"rendered":"http:\/\/www.wild-facts.com\/?p=3834"},"modified":"2017-10-14T15:31:00","modified_gmt":"2017-10-14T19:31:00","slug":"wild-fact-634-the-perfect-deep-sea-tool-marine-hatchetfish","status":"publish","type":"post","link":"http:\/\/www.wild-facts.com\/2011\/wild-fact-634-the-perfect-deep-sea-tool-marine-hatchetfish\/","title":{"rendered":"Wild Fact #634 – The Perfect Deep Sea Tool – Marine Hatchetfish"},"content":{"rendered":"

\n

\"\"<\/a>
Photo by Francesco Costa (Wikimedia)<\/figcaption><\/figure>\n

For some reason I was in the mood to talk about a bizarre animal today.\u00a0 As usual, when I am looking for something super extraordinary, I head to the deep depths of the ocean.\u00a0 What I found down there was the Marine Hatchetfish, which is also known as the Deep Sea Hatchetfish. You can probably tell that this fish gets its name since the shape of their body sort of resembles that of a hatchet.\u00a0 Don’t worry, I had to look at the picture twice as well to try and make out the hatchet shape.<\/p>\n

There are about 45 different species of Hatchetfish ranging in size from 2.5- 15 cm (1-6 inches).\u00a0 Obviously their most distinctive feature is just how thin their bodies are which gives them the appearance of the blade of a hatchet.\u00a0 I would like to note right now that it is important not to confuse these deep sea fish with the freshwater hatchetfish that you may have in your aquarium.\u00a0 They are not the same although, I suppose you could try to put this marine variety into your fish tank.<\/p>\n

\"\"<\/a>
Silver Hatchetfish (Wikimedia)<\/figcaption><\/figure>\n

As with other deep sea fish the Marine Hatchetfish has large, tubular eyes which point up.\u00a0 Naturally, this allows this dangerous predator to observe its surroundings from the ocean floor.\u00a0 They have also adapted to the incredibly low light conditions found at these depths.\u00a0 As a result their eyes are extremely sensitive to light and can make out the slightest shadows amongst the very dim light of the surface.<\/p>\n

Of course if they become afraid of the dark then they can always make their own light.\u00a0 Yep, just like some of the other odd, deep sea creatures the Marine Hatchetfish is capable of creating their own light through bioluminscence.\u00a0 So what does the Hatchetfish use this light making ability for?\u00a0 Well, for starters these lights are pointing down towards the ocean floor so it is believed they are largely used to hide themselves from predators.\u00a0 Believe it or not they will actually adjust the level of light below them to match the surface light, which makes them practically invisible.\u00a0\u00a0 As well it is also believed that the lights may also play a role in the mating habits of Marine Hatchetfish but we just don’t know enough yet.\u00a0 Hey!\u00a0 There is a potential study for you to get some grant money to carry out.<\/p>\n

That does it for another Wild Fact.\u00a0 So far this week we have gone from the sky to the deepest parts of the sea.\u00a0 Perhaps tomorrow we will go somewhere in between.\u00a0 Enjoy the rest of your day!<\/p>\n","protected":false},"excerpt":{"rendered":"

For some reason I was in the mood to talk about a bizarre animal today.\u00a0 As usual, when I am looking for something super extraordinary, I head to the deep depths of the ocean.\u00a0 What I found down there was the Marine Hatchetfish, which is also known as the Deep Sea Hatchetfish. You can probably tell that this fish gets its name since the shape of their body sort of resembles that of a hatchet.\u00a0 Don’t worry, I had to look at the picture twice as well to try and make out the hatchet shape. There are about 45 different <\/p>\n","protected":false},"author":1,"featured_media":3836,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[64,4024],"tags":[348,282,1576,1577,1578,1575,4025],"yoast_head":"\nMarine Hatchetfish Facts<\/title>\n<meta name=\"description\" content=\"If you love the odd creatures of the deep sea then you will love the Marine Hatchetfish. 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