Lists of animals Wikipedia

For example, adult echinoderms are radially symmetric (unlike their larvae), while some parasitic worms have extremely simplified body structures. Many bilaterian phyla have primary larvae which swim with cilia and have an apical organ containing sensory cells. They also have a gut that extends through the basically cylindrical body from mouth to anus. Many bilaterians have a combination of circular muscles that constrict the body, making it longer, and an opposing set of longitudinal muscles, that shorten the body; these enable soft-bodied animals with a hydrostatic skeleton to move by peristalsis.
Having a front end means that this part of the body encounters stimuli, such as food, favouring cephalisation, the development of a head with sense organs and a mouth. The digestive chamber has two openings, a mouth and an anus, and in the Nephrozoa there is an internal body cavity, a coelom or pseudocoelom. Most members of Medusozoa, including jellyfish and most hydrozoans, have a polyp form as well, but also have a motile medusae stage. Members of the group Anthozoa, such as sea anemones, coral, and sea pens only are sessile polyps. Sponges lack the complex organisation found in most other animal phyla; their cells are differentiated, but in most cases not organised into distinct tissues, unlike all other animals.
Japan is an ethnically and culturally homogeneous society, with the Japanese people forming 97.4% of the country’s population. On April 1, 2019, Japan enacted its revised immigration law, protecting the rights of foreign workers to help reduce labor shortages in certain sectors. The country has therefore aimed to diversify its sources and maintain high levels of energy efficiency. The high-speed Shinkansen (bullet trains) that connect major cities are known for their safety and punctuality. The explorer entered a lunar orbit on October 4, 2007, and was deliberately crashed into the Moon on June 11, 2009. Japan’s plans in space exploration include building a Moon base and landing astronauts by 2030.
In contrast, the cells of other multicellular organisms (primarily algae, plants, and fungi) are held in place by cell walls, and so develop by progressive growth. Development in Bilateria and Cnidaria is controlled by Hox genes, which signal the times and places to develop structures such as body segments and limbs. The biological definition includes all members of the kingdom Animalia. Non-human animals are also an important element of human culture, having appeared in cave arts and totems since the earliest times, and are frequently featured in mythology, religion, arts, literature, heraldry, politics, and sports.

• It is thought to be one of the earliest predators, catching small prey with its nematocysts as modern cnidarians do.
• The Japonic-speaking Yayoi people later entered the archipelago from the Korean Peninsula, intermingling with the Jōmon people.
• Development in Bilateria and Cnidaria is controlled by Hox genes, which signal the times and places to develop structures such as body segments and limbs.
• The high-speed Shinkansen (bullet trains) that connect major cities are known for their safety and punctuality.
• In sponges, blastula larvae swim to a new location, attach to the seabed, and develop into a new sponge.
• As the host and signatory of the 1997 Kyoto Protocol, Japan is under treaty obligation to reduce its carbon dioxide emissions and to take other steps to curb climate change.

The earliest works of Japanese literature include the Kojiki and Nihon Shoki chronicles and the Man’yōshū poetry anthology, all from the 8th century and written in Chinese characters. Japan has the lowest rate of heart disease in the OECD, and the lowest level of dementia among developed countries. Since 1981, the principal cause of death in Japan is cancer, which accounted for 27% of the total deaths in 2018—followed by cardiovascular diseases, which led to 15% of the deaths.

• The Nara period (710–784) marked the emergence of a Japanese state centered on the Imperial Court in Heijō-kyō (modern Nara).
• The Pacific coast features a humid subtropical climate that experiences milder winters with occasional snowfall and hot, humid summers because of the southeast seasonal wind.
• In 784, Emperor Kanmu moved the capital, settling on Heian-kyō (modern-day Kyoto) in 794.
• The animal clade had certainly originated by 650 mya, and may have come into being as much as 800 mya, based on molecular clock evidence for different phyla.
• The protostomes include the Ecdysozoa, named after their shared trait of ecdysis, growth by moulting, Among the largest ecdysozoan phyla are the arthropods and the nematodes.

Foreign relations

Animals that eat both plants and meat are called omnivores. Other animals eat only meat and are called carnivores. Some animals eat only plants; they are called herbivores. The animal mode of nutrition is called heterotrophic because they get their food from other living organisms. Also, the cells of animals have different cell membranes to other eukaryotes like plants and fungi.
This process accelerated in the 1930s, spawning several radical nationalist groups that shared a hostility to liberal democracy and a dedication to expansion in Asia. During the Meiji period (1868–1912), the Empire of Japan emerged as the most developed state in Asia and as an industrialized world power that pursued military conflict to expand its sphere of influence. Adopting Western political, judicial, and military institutions, the Cabinet organized the Privy Council, introduced the Meiji Constitution (November 29, 1890), and assembled the Imperial Diet. The resignation of the shōgun led to the Boshin War and the establishment of a centralized state nominally unified under the emperor (the Meiji Restoration). The Zen school of Buddhism was introduced basswin from China in the Kamakura period (1185–1333) and became popular among the samurai class.

Red-Billed Quelea Bird

Animals such as the fruit fly Drosophila melanogaster serve a major role in science as experimental models. Working animals including cattle and horses have been used for work and transport from the first days of agriculture. The human population exploits a large number of other animal species for food, both of domesticated livestock species in animal husbandry and, mainly at sea, by hunting wild species. Since then, the last four have all been subsumed into a single phylum, the Chordata, while his Insecta (which included the crustaceans and arachnids) and Vermes have been renamed or broken up.

Spinner Shark

The country hosted the official 2006 Basketball World Championship and co-hosted the 2023 Basketball World Championship. Super GT is the most popular national racing series in Japan, while Super Formula is the top-level domestic open-wheel series. Green tea is produced in Japan and prepared in forms such as matcha, used in the Japanese tea ceremony.

Since 1973, all elderly persons have been covered by government-sponsored insurance. People without insurance through employers can participate in a national health insurance program administered by local governments. Payment for personal medical services is offered through a universal health insurance system that provides relative equality of access, with fees set by a government committee. Other minority religions include Hinduism, Judaism, and Baháʼí Faith, as well as the animist beliefs of the Ainu. Throughout the latest century, Western customs originally related to Christianity, including Western style weddings, Valentine’s Day and Christmas, have become popular as secular customs among many Japanese.