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Sepia documentary film

author: | 28, 2017 press | Dokumenty | 0 comments

Sepia - a description

Cuttlefish are predatory marine cephalopods. They have eight shorter tentacles and two longer tentacles endowed with suckers that they use to catch the prey. The box is inside the body, transformed into so-called sepium bone. From the sepia secretions a painting pigment is obtained - a brown pigment - called sepia.
Among scientists, sepia is often considered to be the most intelligent representative of invertebrates.
Cuttlefish are found in the Mediterranean and in the Eastern Atlantic, from Morocco to Norway.
Sepia spends the day buried in the sand on the bottom, the evening begins to be active and goes hunting. It lurks in the sand, then slides out of it, and the selected prey (usually fed by smaller fish or bivalves) is slowly floating through the wobbling movement of the fin. When close enough, he ejects both lap-up arms, which are then placed in the skin pockets, and the victim grabs them. The victim is killed by sharp jaws and paralyzing secrets.
The breeding season is in the spring. The male performs an interesting mating dance in which he quickly changes his body color. The mating itself will take place by inserting a spermatophore into one female cavity. The female fixes the dark-colored eggs and the lemon-shaped on the sea plants. Cuttlefish has a direct development, just like all cephalopods. The youngsters spend first time in the plankton after hatching, then begin to swim themselves actively.
Sepiaceae belong to the ten-armed cephalopods. It reaches up to 30 cm. It has eight short shoulders equipped with four rows of suction cups and two shoulders long, which are retractable and have four rows of differently large suction cups at the club-shaped ends. The body is flattened and rounded with a fin. Color is very variable and cuttlefish can quickly change its color depending on the environment. But the color can change depending on your mood. On the back under the skin is the rest of the lime box - it can be found washed out on the seashore like sepia.

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