Portal:Myanmar
Myanmar, officially the Republic of the Union of Myanmar and also known as Burma (the official name until 1989), is a country in Southeast Asia. It is the largest country by area in Mainland Southeast Asia and has a population of about 55 million. It is bordered by Bangladesh and India to its northwest, China to its northeast, Laos and Thailand to its east and southeast, and the Andaman Sea and the Bay of Bengal to its south and southwest. The country's capital city is Naypyidaw, and its largest city is Yangon (formerly Rangoon).
Myanmar is a member of the East Asia Summit, Non-Aligned Movement, ASEAN, and BIMSTEC, but it is not a member of the Commonwealth of Nations despite once being part of the British Empire. Myanmar is a Dialogue Partner of the Shanghai Cooperation Organization. The country is very rich in natural resources, such as jade, gems, oil, natural gas, teak and other minerals, as well as also endowed with renewable energy, having the highest solar power potential compared to other countries of the Great Mekong Subregion. However, Myanmar has long suffered from instability, factional violence, corruption, poor infrastructure, as well as a long history of colonial exploitation with little regard to human development. In 2013, its GDP (nominal) stood at US$56.7 billion and its GDP (PPP) at US$221.5 billion. The income gap in Myanmar is among the widest in the world, as a large proportion of the economy is controlled by cronies of the military junta. Myanmar is one of the least developed countries; as of 2020, according to the Human Development Index, it ranks 147 out of 189 countries in terms of human development, the lowest in Southeast Asia. Since 2021, more than 600,000 people were displaced across Myanmar due to the surge in violence post-coup, with more than 3 million people in dire need of humanitarian assistance. (Full article...)
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Zigrasimecia is an extinct genus of ants which existed in the Cretaceous period approximately 98 million years ago. The first specimens were collected from Burmese amber in Kachin State, 100 kilometres (62 mi) west of Myitkyina town in Myanmar. In 2013, palaeoentomologists Phillip Barden and David Grimaldi published a paper describing and naming Zigrasimecia tonsora. They described a dealate female with unusual features, notably the highly specialized mandibles. Other features include large ocelli, short scapes, 12 antennomeres, small eyes, and a clypeal margin that has a row of peg-like denticles. The genus Zigrasimecia was originally incertae sedis (uncertain placement) within Formicidae until a second species, Zigrasimecia ferox, was described in 2014, leading to its placement in the subfamily Sphecomyrminae. Later, it was considered to belong to the distinct subfamily Zigrasimeciinae.
Due to the highly specialized mandibles, scientists believe that the ants exhibited habits no longer seen in extant ants. The highly movable head suggests that mobility was an important factor for them (probably for feeding behavior), and the rugose projections may have played a major role in nest excavation because the mandibles would have prevented such activity. Zigrasimecia most likely interacted with the extinct ant genus Gerontoformica through conflict and probably shared some of their ecological niches. The mandibles of these ants were probably used for mechanical interactions with food, and they may also have served as traps for potential arthropod prey such as mites and small flies. Zigrasimecia was possibly a generalist predator. (Full article...) -