To the question What does a RAG HORSE look like? given by the author YOSHAN the best answer is Ribbon-shaped leathery growths on its body resemble either leaves or feathers and help it remain unnoticed by predators in thickets of algae. His Latin name Phyllopteryx is made up of two words: phyllon - leaf and pteryx - feather, wing. Literally - a leafhopper.
It earned its name due to its unusual appearance: outgrowths extend from the body, head, and fins in the form of ribbons, flaps and some incomprehensible “scraps,” and all of this trembles and sways in time with the waves. The color of the skate is naturally indistinguishable from the color of sargassum algae.
The horse is a rag picker and will be saved in the seaweed without hiding. He looks torn and torn all over. If it floats, it is easy to mistake it for a rag or a piece of seaweed. Rag pickers are most diverse off the coast of Australia.
Skates do not swim like fish, but glide gracefully, holding their heads and top part bodies vertically. How does the horse move itself? It turns out to be the dorsal fin, which quickly sways from side to side, like a fan. Skates swim slowly, so they do not run away from enemies, but hide, camouflaging themselves among algae and changing their color depending on the natural background. And the rag-tailed pipit is initially composed of numerous long spines and ribbon-like outgrowths and outwardly looks like a branch of Sargassum algae, in the thickets of which it lives.
When for seahorses the time is coming mating games, they are singing" . The sounds of mating duets resemble snapping fingers. So the male invites the female to lay eggs in his brood pouch, which is located on his belly and opens outwards with a small hole. After the eggs are laid, all concerns about bearing the offspring fall entirely on the shoulders of the male pipist. The number of embryos carried by one skate is small - from 20 to 200, but the offspring carried in the pouch to the stage of a viable larva have a high chance of survival.
Like the seahorse, the leaf dragon gets its name from its resemblance to another creature (albeit a fairy tale one). Its size, of course, does not reach that of a real dragon, but compared to a seahorse, it is a real giant, it grows up to 45 cm. The food of the leafy dragon is plankton, algae, and floating debris.
Unlike seahorses, male sea dragons do not have a brood pouch. Like their close relatives, female dragons lay up to 120 ruby-red eggs, which are then fertilized and attached in a special place under the male's tail. During pregnancy, couples move closer to each other every morning and perform a kind of love dance with their skin color changing towards brighter shades. 4-8 weeks pass, and the birth of little dragons (exact copies of adults) occurs.
Leaf dragons are in danger of extinction due to industrial emissions, as well as becoming specimens in the collections of those enchanted by them. appearance divers. Due to this danger, the species is under the protection of the Australian government.
The less famous grass sea dragon (Phyllopteryx taeniolatus) is similar to its leafy cousin, but the yellow and red shoots of its body are unsightly and reminiscent of weeds - hence the name. They are mainly found in Australian waters off the coast of New South Wales and Victoria.

Rag picker (lat. Rhycoredurus eques) – ray-finned sea ​​fish from the Needle family (lat. Syngnathidae). The presence of many leaf-like growths gives it a very original appearance, making it more like a plant rather than a fish.

It is also called the rag-picker seahorse, although zoologists have separated this miracle into a separate genus Rhycodurus, which translated from Greek means “similar to seaweed tail".

Spreading

Rag pickers live in cold sea ​​waters on the south coast of western and southern Australia. Their habitat extends sporadically from the outskirts of the Australian city of Perth to national park Wilsons Promontory on the peninsula of the same name in Victoria.

Fish settle at depths from 3 to 30 m on the border of sandy beaches and coral reefs. Unlike seahorses, they do not attach to plants, so during storms they are often washed ashore. From this point of view sand beach much better than the coastal rocks.

Behavior

The color of the fish depends entirely on the conditions. environment. In shallow water they are sandy or olive in color. Rag pickers living on great depths, predominantly dark brown or brownish-red. The body length of adult individuals reaches 35 cm. It is extremely rare to come across specimens that have managed to grow up to 50 cm.

Ragfingers feed on small crustaceans, especially paying attention to shrimps and mysids. They swim very slowly with the help of small translucent fins. Their tail is motionless.

In an hour, these sea slugs move only 100-140 m.

Despite their inactivity, they are practically invisible among underwater vegetation, so they very rarely come to predators for lunch.

The rag picker has no teeth and swallows its prey whole. The fish eats up to 3 thousand mysids per day. He likes to eat protein foods with marine herbaceous plants from the genus Posidonia.

Reproduction

Spawning takes place in winter. To procreate, rag pickers gather in small bays. At this time, females can be easily distinguished from males by their large swollen bellies.

The female lays 250 to 300 eggs, which are attached to the male's tail.

The eggs are 7 mm long and about 4 mm in diameter. The tail of the new parent takes on a yellowish tint. Happy and proud fathers leisurely set off into deep waters to devote themselves to the pleasant chores of raising their offspring.

Young fish hatch from eggs after about 8 weeks within 6-7 days. Their size does not exceed 3.5 cm. During their first 3-6 hours of life they remain close to their father. After listening to their father's parting words, the young rag pickers independently go to the shallow waters.

The species is taken under state protection. Ragpickers in Australia are bred in aquariums and sold for export. In captivity good care they live up to 10 years.

A small fish, the seahorse, lives at shallow depths among aquatic plants; its shape and color are similar to algae. Name the type of its protective device against enemies, explain its meaning and relative nature. 1) the resemblance of an animal to a stationary one natural object-a plant is called a patronizing resemblance (imitation); 2) the seahorse hangs among aquatic plants and is invisible to predators; 3) when the fish moves or in open space, it becomes accessible and noticeable to enemies.

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“Unified State Exam in Biology” - Features of the Unified State Exam in 2010. Answers: Heterozygote, homozygote and how many types of gametes they produce. Analyze and evaluate. Flaws. Basic provisions of biological theories and laws. Choosing an answer at random. Inattention when completing tasks. At the end of 2009, 961 graduates took biology.

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The grass sea dragon belongs to the pipefish family (Syngnathidae), which includes seahorses and pipefish. Everyone has known about seahorses for a long time and are already accustomed to their bizarre appearance, but here we have something truly unusual!

Let's face it - Sea Horses not all that similar to the animals they are named after. Firstly, they have no hooves, and secondly, have you ever seen a horse with such a prehensile tail? These fish received the name “pipit” mainly due to the shape of their head, or because they like to eat refined sugar. Last fact At least not known to me.

But the grass sea dragon (Phyllopteryx taeniolatus), which will be discussed, fully lives up to its name, except that it does not breathe fire.

Growing to a size of 45cm, these amazing imitators truly look like little dragons. Their dorsal fins look like wings. The image is complemented by armor on the body made of bone plates, a long tail and a head with a comb.

This unusual body structure is explained by its habitat. The grass sea dragon lives in temperate zone off the coast of South Australia among kelp and other marine plants. They hide in these forests swaying with the current, hunting for mysid crayfish and other small marine crustaceans.

Ragbills lack a tail fin, making them poor swimmers. These move unusual creatures thanks to the energetic strokes of the dorsal and pectoral fins. Pisces form pairs for procreation in early summer, performing skillful mating dances. After this, the female lays up to 250 eggs, which are glued to the male’s tail.

The role of the female in caring for the offspring has been exhausted, and next couple The male carries the eggs on his tail for months until small copies of the parents hatch from them.

Unfortunately, there are many threats to this quirky fish, most of them related to the destruction of natural habitats. Industrial mining of rock lobsters leads to population increase sea ​​urchins Centrostephanus rogersii, which are hunted by lobsters. The sea urchin eats the kelp and leaves the grass sea dragon out in the open, without food, defenseless against predators. Besides. The likelihood of being washed ashore during a storm increases.

The deterioration of living conditions due to human activities - dredging, land reclamation, wastewater discharge - further contributes to the extinction of the sea dragon. These and other factors have led to Phyllopteryx taeniolatus being listed by the International Union for Conservation of Nature and natural resources, in the Red Book as endangered.