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Meet The Opah, The First Known Warm-Blooded Fish

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The Opah, or moonfish, lives deep below the ocean's surface and uses its unique features to generate and store heat. Follow Jay Strubberg: http://www.twitter.com/JayStrubberg See more at http://www.newsy.com Transcript: Researchers say they've discovered the first known fully warm-blooded fish. It's called the Opah, or moonfish, and it lives in cold environments deep below the ocean's surface. Scientists say the Opah generates heat by constantly flapping its pectoral fins. (Video via Science) It then uses fatty tissue to help trap the heat and special blood vessels to spread the warmth throughout its large, disc-like body. Fish, of course, are generally thought to be cold-blooded animals, so researchers say this gives the Opah a "competitive edge" over some of its aquatic cousins in more frigid waters. And, sure, the orange-and-silver fish might look pretty innocent, but researcher Nicholas Wegner of the the National Oceanic and Atmospheric Administration says the opah is actually quite the aggressor. "Before this discovery I was under the impression this was a slow-moving fish, like most other fish in cold environments. But because it can warm its body, it turns out to be a very active predator that chases down agile prey like squid and can migrate long distances," Wegner said. Other fish, like tuna and some sharks, can also generate heat, but their bodies can only handle short periods in the cold before they have to retreat to warmer waters. (Video via National Geographic) The Opah can keep its body warm for long periods of time, so it doesn't have to worry about that as much. But despite what seems like a pretty cool discovery, at least one scientist was skeptical. At least at how it's labeled, anyway. The study refers to the Opah as a fish with "whole-body endothermy" or, basically, entirely warm-blooded. But an associate professor of biology at the University of Massachusetts Dartmouth is quoted in The Washington Post saying that's a bit misleading. He says the opah is warm for the most part, but, "It gets cold as you go back into the body or back into the tail or as you go up or down," so calling it a "whole-body" warm-blooded fish might be a stretch. The findings from the Opah study are published in the journal Science. Sources: Flickr https://www.flickr.com/photos/nmfs_northwest/17208574780/ Science https://www.youtube.com/watch?v=4JsTc-0DyOA NOAA https://swfsc.noaa.gov/news.aspx?ParentMenuId=39&id=20466 Flickr https://www.flickr.com/photos/nmfs_northwest/17394170582/ Flickr https://www.flickr.com/photos/nmfs_northwest/17188703717/ Flickr https://www.flickr.com/photos/nmfs_northwest/17208575760/ National Geographic https://www.youtube.com/watch?v=7au8lgWYguQ Flickr https://www.flickr.com/photos/nmfs_northwest/17208583070/in/photolist-sbUALD-sdErKb-sv4GKm-sdEud7-sdEtcj-sv4EUN-ryehuj-sdEs35-87gusS-87dhwZ-4cGipW-65PV6t-nV78Lu-dWc6ZZ-bXDEV-2pgfRs-6GuGv-a9YRU3-nCKLx5-nCEQXj-sqvsJ-7yTpyS-9C4Ccw-6YMipn-473iG1 Science http://www.sciencemag.org/content/348/6236/786.full The Washington Post http://www.washingtonpost.com/news/energy-environment/wp/2015/05/14/scientists-have-discovered-the-first-warm-blooded-fish/?hpid=z1 Flickr https://www.flickr.com/photos/nmfs_northwest/17208579660/ Image via: NOAA Fisheries West Coast / CC BY NC ND 2.0 https://www.flickr.com/photos/nmfs_northwest/17394170582/in/photolist-sbUALD-sdErKb-sv4GKm-sdEud7-sdEtcj-sv4EUN-ryehuj-sdEs35-87gusS-87dhwZ-4cGipW-65PV6t-nV78Lu-dWc6ZZ-bXDEV-2pgfRs-6GuGv-a9YRU3-nCKLx5-nCEQXj-sqvsJ-7yTpyS-9C4Ccw-6YMipn-473iG1
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Text Comments (45)
Ryan (7 months ago)
any one else doing a report on the opah
Jedistarship (7 months ago)
You know what also warms the blood? being captured lol.
Supes Me (9 months ago)
Just goes to show we don't know Poop about what's in the ocean...they're just discovering this thing now??
John C. (10 months ago)
Hal Heywood (11 months ago)
white shark too .opah xlnt. eating
andrea (1 year ago)
⬅️ My oppa
Lance Winslow (2 years ago)
That Oprah Fish is cool, but she needs to lose weight badly.
zimmerman84 (2 years ago)
blow job lips 😂
michael pullen (2 years ago)
The fish is not that big
the fruit hunter (2 years ago)
it grows over 100 pounds. that pretty big.
Michael Espinoza (2 years ago)
Wonder what it tastes like?
Jack Pulse (8 months ago)
Das Berserker just had my first tonight. Only came here after my brother told me we were eating it haha I thought it was steak
Das Berserker (9 months ago)
Michael Espinoza some of the best I’ve ever eaten
stacey rain (2 years ago)
people eat these?? WHY?
Hassan Syed (4 months ago)
Asians eat everything
crown royal (9 months ago)
stacey rain because they are yummy
PirateKing1256 (3 years ago)
unruffledduck (3 years ago)
My body gets colder as I move away from my pectorals too. My feet and hands ~ so cold. Maybe I'm an opah then.
SlipKnotRicky (3 years ago)
What does this fish have to do with Oprah?
DOTcom SOMTN (1 year ago)
SlipKnotRicky 🤣🤣🤣✨
SlipKnotRicky (2 years ago)
+Kian You're not fluent in sarcasm are you?
SlipKnotRicky (2 years ago)
+giannapple My point exactly.......
giannapple (2 years ago)
+SlipKnotRicky Nothing.
Roger Kreil (3 years ago)
David (3 years ago)
I always had Oprah down as cold blooded - ha! who would av guessed ;)
onlythewise1 (3 years ago)
warm blood and were just discovering that
harith husam (3 years ago)
Wow we discovered a new fish, let's kill it and eat it
crown royal (9 months ago)
Monty don't know what it says but he deserved it.. 😂
Rennie Ash (9 months ago)
onlythewise1 Hey guys, come back please :)
onlythewise1 (2 years ago)
+INTERNATIONAL really, your really kidding aren't you or are you looking in the mirror saying that  
INTERNATIONAL (2 years ago)
+onlythewise1 lol you are really retarded, bye 
onlythewise1 (2 years ago)
+INTERNATIONAL I already said it was discovered long time ago dumb ass you mean by some young scientist who think anything they learn is new . wow im talking to a dip shit here  
Candice (3 years ago)
We destryoing our oceans and we havent even discovered all the have to offer yet I wonder how many species we have unknowingly killed off before knowing they even existed ...
quercus (3 years ago)
Great video. I wonder what we will learn from this?
Jeff Liggett (3 years ago)
Maybe core-body endothermy?

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