Скачать или смотреть The fact about the Sea Angel Nudibranch

Diving Deep: the Sea Angel – Compassion Crossing
Sea angels are small, translucent sea slugs with wing-like appendages used for swimming, which they use to hunt other, shell-bearing sea slugs called sea butterflies. They are fierce predators that use hook-like tentacles to pull their prey out of its shell. These organisms are found in cold ocean waters worldwide and play a vital role in the marine food web. They are also hermaphrodites, meaning they can switch sexes, and they defend themselves with a noxious molecule called pteroenone.
Predators and diet
Sea angels are fierce predators that primarily feed on small, shell-bearing sea snails called "sea butterflies".
They can swim faster than their prey, using a variety of hunting strategies depending on the species, including active pursuit or ambush tactics.
Once they catch their prey, they use hooked tentacles to pull the victim from its shell.
They can also use mucous webs to trap their prey.
Defense and appearance
Sea angels are transparent, which helps them hide from predators in the deep sea.
They defend themselves by synthesizing a noxious molecule called pteroenone.
Their "wings" are actually a modified, muscular foot that they flap rhythmically to move through the water.
Some species have been observed with colorful internal organs, appearing as orange, yellow, red, or green.
Reproduction and life cycle
Sea angels are hermaphrodites, possessing both male and female reproductive organs.
During mating, they often lock together and "dance" for hours.
They reproduce by releasing gelatinous egg masses into the water.
The larval stage of some species, like Clione limacina, is a shelled pteropod before they become a shell-less sea angel.
Habitat and size
They are found in oceans around the world, but they are most common in cold waters, especially in the Arctic and Antarctic.
They can be found from the surface down to several hundred meters deep.
The largest species can reach up to 7–8.5 cm (2.8–3.3 in) long, while others are only up to 1.2 cm (0.5 in).