The Round Goby or Neogobius Melanostomus

A rounded goby Neogobius melanostomus is an alien species fish. They are known for their iconic black spots of aggression and dorsal fin. Originally found in Eurasia, especially Black Sea, Azov Sea, Caspian Sea. They can live in freshwater and sea water, so they can prosper wherever they can. Since its first discovery in the St. Clair River in 1990, the invasive species is now known as the Great Lakes of the United States of America.

In 27 minutes, 42 seconds was originally released as a clip techno of television program in 1999. Use the Great Lakes and the San Francisco Bay as a case study to investigate the threat posed by aquatic nuisance species (sea otter, zebrahl shellfishes, Chinese mitten crab, Eurasian pygmy etc) against the aquatic environment in North America. Please also see how scientists, policy makers, and the public are working to prevent the spread of these intruders. The classic experiment of Hans Spaman was reproduced in 15 minutes, which led to the discovery of embryonic cell differentiation. I explain that amphibians are similar to human eggs and use a microscopic micrograph and a dye to investigate the progression of sputum embryo cell division. It shows "fate map" of Walter Vogt which instructs which part of the egg becomes part of the body

Many people living in tropical sandy beaches dig a hole and share a cave with symbiotic shrimp. These relationships are species-specific. Normally shrimp will dig a hole to protect the cave, but gobo protects him from predators. This species, Stonogobiops nematodes are usually displayed in pairs at the bottom of the sand at a depth of more than 15 meters and coexist with alpine shrimp. They will also be displayed at high latitudes, but feather stars (Communitae, Echinoderma) are remarkable and cute features of coral reefs. The most impressive is the arm, decorated with a small needle. Which in turn captures small zooplankton pins by direct interception. The picture in the upper right corner shows cirri grasping the bottom layer. The picture in the upper left corner shows the location of the small feathers in the plane. This may correspond to the position of the stars (bottom) of feathers in an open habitat.