Canaries are everywhere, but they’re rarely seen in the ocean.
A group of researchers from the University of Queensland in Australia has a theory: they’re the big fish that live deep in the deep ocean.
The fish are so rare that they don’t even have a name.
The only name given is ‘canary’.
The researchers are calling them the canariads because the species can survive underwater for years at a time, but have a hard time seeing sunlight.
This photo of a large canary (canariadus canariensis) from the deep water of the Antarctic Peninsula (right) was taken in 2016.
Source: University of Melbourne/FlickrThe researchers have called the fish the canaris because they can survive for years in deep water.
The researchers, led by Professor Jonathan Fischl, from the School of Biological Sciences at the University and the University’s Institute for Geophysics, believe the name is appropriate because the fish can live underwater for millions of years, but are rarely seen.
“The main reason we chose the name ‘canariads’ was because the canary is the only member of the genus Canaris that has a name,” Fischk said.
“In the past, we’ve found that these small canaries have very hard lives in the water, but when they’re found in large numbers, the average life span is quite short, often only a few years.”
Fischl and his team first noticed that large fish in the Antarctic were having trouble seeing sunlight in the summer months, but this lack of sunlight caused their bodies to stop working.
The scientists then used a laser to take a picture of a canary with its backside exposed and then compared that to a photo taken in daylight.
The canaris were found to have a thick, red mantle in the middle of their skin, which had to be removed to expose their skin.
When the canaries are in sunlight, their skin becomes light blue, and the mantle on their backside is also red.
This is how their skin looks when exposed to sunlight.
The team then took a photo of each fish and compared that with a photograph taken in the dark, and then again with sunlight.
They found that the average skin temperature was the same, and this confirmed that the canarians’ mantle was only exposed during the daylight hours.
When they looked at their skin in the laboratory, they found that their skin temperature rose significantly with increasing depth.
“It turns out that the body temperature increases over the course of a year in a canarian,” Fitchl said.
The sun doesn’t reach their skin as deep as it would in the winter months, so they only need to cover their skin for about three months of the year to get their temperature up to normal.
“But when they are in the sunlight, the skin temperature in the canarian increases by more than 20 degrees.
That means that their body temperature is about 2,000 degrees above the average temperature,” Fichl said.”
It’s like having a lot of skin that has been completely burnt off.”
The researchers also found that a few canaris can withstand being exposed to high temperatures for a long time, so their skin didn’t need to be burnt off.
When exposed to temperatures higher than 30 degrees Celsius, the canaria are protected by a thin layer of their mantle.
This prevents their skin from getting burnt.
In the photo below, you can see a group of canaris (canaris canariens) on top of a rock.
They’re protected by their mantle and can survive temperatures up to 30 degrees.
When their skin was exposed to the sunlight they looked a little darker, but the researchers say the difference was minimal.
“When the sunlight hits the canarie’s skin, it absorbs most of the sunlight and the light turns into a dark purple colour,” Foulks said.
While the canarets skin may be dark, they don.
When exposed to a bright light, the scientists say the canaret’s skin becomes bright red, and that’s why the canarius can be known as a canaria.
The next step is to find out how long the canarist will survive underwater.
Fischk believes the researchers are on to something, and says they could eventually use the mantle as a protective layer.
“This would be a great way of protecting the canarium, as it might not be necessary to keep the mantle in place long term,” he said.
In another study published in Science, scientists found that coral reef fish are more sensitive to light than previously thought.
A coral reef shark swims under water with the sun shining on its back, which causes the fish to become darker.
The team says that coral fish may also be sensitive to sunlight because of their dark mantle.
Source, Business Insider