Sea dragon — Trachinus draco
Dragon, Scorpid, dragon (no.)
Sea dragon – Trachinus draco
Sea dragon is the only representative of the family of the Drakensberg (Trachinidae) in the Black sea. Characterized by low elongated body covered with dense small scales. On the head of a sea dragon there are several spikes, the largest of them is located on the operculum and sent back. The first of two dorsal fins with a black spot, short, and consists of 6-7 spiny rays. The body color is gray or yellow with oblique bands on flanks, fins greenish, the tail on the falling edge of almost black. In the Black sea dragon lives everywhere known cases of arrest in the Kerch Strait. In the coastal zone of the Crimea the sea dragon is most common from may to November at depths up to 20 m, deeper in winter is kept. Continue reading
Biology, Life in the deep sea . The report of the Speech of the World ocean is the habitat of a huge number of plants . fish . marine animals . including mammals.
During the day fish the Viper inhabits at great depths of 1000 – 2800 m, and at night rises to the surface to a depth of only 50 m. the Greatest depth . on.
The distribution of animals on Earth
Biology, Distribution of animals on Earth. Work Exam. c. ) 7.the ratio of active and passive Rosselini. (c. ) 8.Migration of animals . (c. ) 9.Periodic migration. (c. ) 10.Non-recurrent migration. (c.
The genera Neopilina and Vema discovered in the Pacific ocean at a depth of several thousand meters .
Biology, Dinosaurs. Facts and theories. The report, the Speech Name always consists of two parts: family names (with capital letters) and name of the species (not capitalized). Continue reading
Why is the sea red? The etymology of the name “Red sea” to the end is still not clear. The most common opinion is the presence of water reddish-brown color. This color to it is given in the season of its flowering is a specific type of algae. The ancient Egyptians because of the unusual color of the stones was called the red Land of the desert, bordering the sea. An extraordinary spectacle, when her reflection in the water, changes its color to coral.
Where is Red sea? It is located between the Arabian Peninsula and Africa and is an inland sea of the Indian ocean. The red sea washes the shores of Saudi Arabia, Yemen, Israel, Jordan, Eritrea, Djibouti, Sudan and Egypt.
From the underground of divergence of two tectonic plates, more than 20 million years ago, there was a deepening. This depression is called a rift valley. Continue reading