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January 16, 2012
During the taping of a documentary on the Great Barrier Reef in Australia, a BBC team obtained images of a pearl (a fish of the family Carapidae) entering his lair: the back of a holoturoideo, a sea creature commonly known as sea ??cucumber.
Interestingly, this is not the only animal that chooses to live an unusual place. What other fish live in curious places?
In back: pearl
The inside of the back of an animal does not appear, as mentioned in the introduction, the most unusual and enjoyable place to live. However, it offers great advantages (see the video click above).
"The most important for fish living in coral reefs is to find a hiding place for shelter from predators," explains Martin Attril, director of the Marine Institute, University of Plymouth, England.
This "fascinating lifestyle," he says, belongs to this group of fish that can also live inside clams, starfish, or within anything "that has a hole."
On the other hand, the pearl is not a threat to their host, and not establishing a parasitic relationship.
Trees: Kryptolebias marmoratus
This fish can survive out of water for 66 days.
This small fish can survive up to 66 days out of water. The Kryptolebias marmoratus lives in the mangroves of the Atlantic and has the ability to survive for a long period of time in trees and logs, "as long as they are wet," said Attrill.
You can do this because their gills are specially adapted: waste nitrogen excreted through your skin when out of water, and scientists have found to survive 66 days in a row, by cutaneous respiration.
A single fish can also repopulate the area although it has been left alone.
"They are hermaphrodites, having both male and female organs, something that is rare in invertebrates," says Attril.
Superheated water: Cyprinodon macularius
This fish survives in extremely warm and salty waters.In summer, temperatures rise sharply in Death Valley, California.
To survive in these extreme conditions, in salt ponds where the water reaches 40 degrees the temperature-Cyprinodon macularius had to adapt over time.
Although it is a tough creature, this fish is threatened primarily by habitat loss and competition with other species of fish.
Dogs that live inside the females: the Lophiiformes
The male fuses with the female. He joins his body as a kind of package.
In the deepest and darkest areas of the ocean is quite difficult to find a partner. But the Lophiiformes, a big-lipped fish and fins without spines, found a solution to the problem.
When a male finds a female grasps her with his teeth and not let go.
It is an extreme form of adaptation: the female carries with it the male, the feeding, and eventually it melts with it until it just looks like a lump in the body of the female.
"As it is difficult to find another fish of the same species, it is best to carry one with you," said Attrill.
In mouth: the big mouths (opistognathidae)
In her mouth, the male can accommodate up to 400 eggs.Parents tend to protect their children and the big mouths take this premise to the extreme: take them into their mouths.
The big mouths are one of the few saltwater fish that use this tactic, used more by freshwater fish.
The female lays eggs and the male keeps in his mouth.
In the anemones, clownfish
To the clown fish, anemones are the ideal place to live.For most small fish living near the tentacles of the anemones is a major threat.
But clownfish (Amphiprion percula) the lash of the tentacles is not affected. His body is covered with a gelatinous substance that protects them from predators.
Publicado por Nadir Sosa en 2:55:00 AM