Lexi Webster
Australia is a country and continent located in the Southern Hemisphere, southeast of Southeast Asia. Southeast Asia is a geographically and culturally diverse region, with hundreds of languages spoken by different ethnic groups. It is comprised of ten countries, including Indonesia, Malaysia, the Philippines, Singapore, and Thailand. The ancestors of Aboriginal Australians are believed to have migrated to Australia from Southeast Asia 50,000 to 65,000 years ago.
| Characteristics | Values |
|---|---|
| Geographical location | Southeast of Australia is Southeast Asia, bounded by the Australian continent to the southeast. |
| Area | Southeast Asia covers about 4,500,000 km2 (1,700,000 sq mi) or 3% of Earth's total land area. |
| Population | The population of Southeast Asia is more than 675 million, about 8.5% of the world's population. |
| Cultural diversity | Southeast Asia is one of the most culturally diverse regions, with hundreds of languages spoken by different ethnic groups. |
| Historical influence | Southeast Asia has been influenced by Indian, Chinese, Muslim, and colonial cultures, which are core components of the region's institutions. |
| Colonisation | Most Southeast Asian countries were colonised by European powers and briefly occupied by Japan during World War II. |
| Modern governance | Today, Southeast Asia is predominantly governed by independent states. |
| Indigenous people | The peoples of Southeast Asia are divided into four major ethnolinguistic groups: Austronesian, Austroasiatic, Tai, and Tibeto-Burman. |
| Migration | There are about 30 million overseas Chinese living in Southeast Asia, with significant populations in Indonesia, Malaysia, the Philippines, and other countries. |
| Natural diversity | Southeast Asia lies near the intersection of geological plates, resulting in seismic and volcanic activities. |
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What You'll Learn
Southeast Asia borders Australia to the north
Australia is the smallest continent and one of the largest countries on Earth, lying between the Pacific and Indian oceans in the Southern Hemisphere. The Australian mainland extends from west to east for nearly 2,500 miles (4,000 km) and from the northeast to the southeast for nearly 2,000 miles (3,200 km).
The region is home to hundreds of languages and ethnicities, with a total population of more than 675 million people, about 8.5% of the world's population. The distribution of religions and people in Southeast Asia is diverse, with significant numbers of Hmong–Mien, Chinese, Dravidians, Indo-Aryans, Eurasians, and Papuans.
Most modern Southeast Asian countries were colonised by European powers, and several were occupied by the Empire of Japan during World War II. Today, the region is predominantly governed by independent states, with ten countries in the region being members of the Association of Southeast Asian Nations (ASEAN), which was established for economic, political, military, educational, and cultural integration among its members.
The boundary between Southeast Asia and Australia is often considered to run through Wallacea, a group of islands that served as stepping stones for plant dispersal between Southeast Asia's rainforests and New Guinea.
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The boundary between the two regions runs through Wallacea
Southeast Asia is bordered to the southeast by the Australian continent. The boundary between these two regions is often considered to run through Wallacea. The islands of Wallacea have few land mammals, land birds, or freshwater fish of continental origin, as these species find it difficult to cross the open ocean. However, many species of birds, reptiles, and insects were able to cross the straits, and species of Australian and Asian origin are found in Wallacea. The Wallace Line, or Wallace's Line, is a faunal boundary line drawn in 1859 by British naturalist Alfred Russel Wallace. It separates the biogeographic realms of Asia and 'Wallacea', a transitional zone between Asia and Australia. The line runs through Indonesia, such as the Makassar Strait between Borneo and Sulawesi, and the Lombok Strait between Bali and Lombok. The islands of Sundaland to the west of the line, including Sumatra, Java, Bali, and Borneo, share mammal fauna similar to that of East Asia, including tigers, rhinoceros, and apes. In contrast, the mammal fauna of Lombok and areas extending eastwards are mostly populated by marsupials and monotremes.
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The Australian continent includes the island of New Guinea
The Australian continent, the smallest of the seven traditional continents, includes the island of New Guinea. The continent is sometimes referred to as Sahul, Australinea, Meganesia, or Australia-New Guinea to differentiate it from the country of Australia. The island of New Guinea is divided politically into two nearly equal halves: Papua New Guinea in the east and Western New Guinea (Indonesia's Papua and West Papua provinces) in the west.
New Guinea is the most northerly part of the Australian continent, and it has a diverse flora and fauna. The island's highlands have a unique climate that supports many species of plants and animals that were once common across Australia and New Guinea. New Guinea has about 786,000 square kilometres of tropical land, which is less than 0.5% of the Earth's surface. It is home to between 5 and 10 percent of all species on the planet, with a high percentage of endemic species.
The island of New Guinea was connected to the Australian continent via a land bridge during the Last Glacial Period, forming the landmass of Sahul. The two landmasses became separated when the area now known as the Torres Strait flooded after the end of the last glacial period. The collision of the Australia-New Guinea tectonic plate with the Eurasian plate caused the buckling that formed the mountains of New Guinea and the Torres Strait.
The island of New Guinea is biogeographically part of Australasia and is considered part of Malesia, a floristic region that includes the Malay Peninsula, Indonesia, and the East Melanesian Islands. New Guinea's flora has many affinities with Asia, while its fauna is predominantly Australian. The island is so biologically distinct that it is considered 'nearly a continent'.
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Australia is the smallest of the seven continents
Australia is a continent located within the Southern and Eastern Hemispheres, near Maritime Southeast Asia. Southeast Asia is bounded to the southeast by the Australian continent, with the boundary between these two regions running through Wallacea.
Australia is also the second smallest continent by population, with just over 40 million people in Oceania. It is considered the driest and most arid continent of the seven, and it boasts some of the most dangerous and exotic creatures outside of the Amazon rainforest in South America.
The country of Australia is mostly on a single landmass and comprises most of the continent. It is sometimes informally referred to as an island continent, surrounded by oceans. The Australian mainland extends from west to east for nearly 2,500 miles (4,000 km) and from the Cape York Peninsula in the northeast to Wilsons Promontory in the southeast for nearly 2,000 miles (3,200 km).
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Aboriginal Australians migrated from Southeast Asia 50,000-65,000 years ago
Australia is a continent situated in the Southern Hemisphere, with the Indian Ocean to its west and the Pacific Ocean to its east. The Australian continent includes mainland Australia, Tasmania, the island of New Guinea, and other nearby islands.
Aboriginal Australians are the indigenous people of the Australian continent. The ancestors of Aboriginal Australians migrated from Southeast Asia to Australia between 50,000 and 65,000 years ago. The movement from Africa to Australia involved a series of sea voyages across Southeast Asia. The last voyage was potentially between Timor/Roti and the northern Kimberley coast, requiring advanced planning skills, four to seven days of paddling on a raft, and a group of more than 100 to 400 people.
The Madjedbebe rock shelter in Arnhem Land, Northern Territory, is one of the earliest sites showing the presence of humans in Australia, with a widely accepted date of approximately 50,000 years ago. Some reports suggest an earlier date of around 65,000 years ago, but this claim has been contested. Molecular clock estimates, genetic studies, and archaeological data support a timeframe of 48,000 to 50,000 years ago for the initial settlement of Australia by modern humans.
Stone tools discovered near Penrith, Australia, have been dated to 45,000 to 50,000 years ago. Additionally, evidence of human habitation at Karnatukul in the Carnarvon Range in Western Australia has been dated to around 50,000 years ago, which is 20,000 years earlier than previously believed. The oldest human remains found in Australia are from Lake Mungo in New South Wales, dated to approximately 41,000 years ago.
Genomic studies indicate that the peopling of Australia occurred between 43,000 and 60,000 years ago. DNA studies suggest that the ancestors of Aboriginal Australians belonged to the southern route dispersal following the "out of Africa" exit, which expanded into South and Southeast Asia before diverging into various ancestral groups.
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Frequently asked questions
Southeast Asia is bordered to the south by Australia. The boundary between the two regions is often considered to run through Wallacea.
Southeast Asia includes countries such as Indonesia, Malaysia, the Philippines, Singapore, Thailand, and Vietnam.
Southeast Asia covers about 4,500,000 km2, which is 8% of Eurasia and 3% of Earth's total land area. It has a population of over 675 million, about 8.5% of the world's population. The region is diverse, with hundreds of languages spoken by different ethnic groups.
