Specific animal characteristics:
1. Transparent frog
This frog is a member of the amphibian family Ranidae. It originated in Venezuela, so it was named "glass frogs" because of its transparency. In this family, the background color of most members is mainly lime green, and the abdominal skin of some members is also transparent, that is, their heart, liver and digestive tract can be seen through the skin.
2. Transparent deep-sea strange fish
This weird deep-sea fish is called "tube eye" (scientific name is big fin anal fish), with a transparent head and tubular eyes. Barreleye's eyes are extremely sensitive to light and can rotate in a transparent protective body filled with liquid on the fish head. Its tubular eyes grow on the head and are covered with bright green crystals. As shown in the figure, when searching for food above the head, Barreleye's eyes will face up; When eating, your eyes will point forward. The two points above the fish's mouth are by no means eyes, but nostrils of olfactory organs, similar to human nostrils.
3.transparent butterfly
This butterfly is found in Central America from Mexico to Panama. Because its wings are transparent, it is named "Greta Oto". The tissue between its wings is transparent, looks like glass, crystal clear and very beautiful.
3.transparent squid
This kind of squid is found in the ocean in the southern hemisphere. Because of its transparency, it is named "glass squid" (scientific name Teuthowenia pellucida). They have light organs in their eyes and have the ability to roll themselves into balls, just like an aquatic hedgehog. Glass squid is the prey of many deep-sea fish (such as clown fish), whales and seabirds.
4.transparent zebrafish
This transparent zebra fish was cultivated by scientists in 2008 to study the development of diseases including the spread of cancer cells. With the help of this transparent "living tool", researchers at Boston Children's Hospital can observe the internal organs of fish and monitor the development of tumors in living organisms in real time.
5. Transparent crocodile-shaped ice fish
Crocodile ice fish (Ophiopogonidae) live in the cold waters of Antarctica and southern South America. They mainly feed on krill, copepods and other fish. Because there is no hemoglobin or red blood cells are dead, the blood of crocodile-shaped ice fish is transparent. Their metabolism depends only on oxygen mixed in liquid blood. It is thought that crocodile-shaped ice fish can use their skin to absorb oxygen directly from the water. This method is obviously very effective because water can dissolve most of the oxygen at the lowest temperature. In the five crocodile-shaped ice fish, the myoglobin gene in the muscle also disappeared, except for the pink heart, leaving them with only white.
6. Transparent feet
This unusual animal, named "Phronima", is one of many strange species discovered in a recent expedition in the deep-sea mountains of the North Atlantic. In order to survive, this tiny shrimp-like animal adopted the opposite strategy. Instead of hiding, they show everything inside and outside without reservation, trying to make themselves disappear from the sight of predators. Scientists say that many other small deep-sea animals are also transparent or close to transparent, so as to better disguise themselves in the dark environment.
7. transparent shrimp
8. Transparent bottle sea squirt
This jellyfish-like animal is called "sea squirt" and feeds on algae, which is a small phytoplankton in the water. Its transparent body is barrel-shaped, and its length is generally 1 ~ 10cm.
9.jellyfish
Jellyfish is a member of vertebrate phylum, and their footprints are all over every ocean, and we can see them both on the surface and in the deep sea. Many jellyfish are so transparent that they are almost invisible. What we see in the picture is an Arctapodema jellyfish, which is only 1 inch (2.5 cm) long.