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Irukandji Jellyfish
The Irukandji jellyfish ( ) are any of several similar, extremely venomous species of rare jellyfish. With a very small adult size of about a cubic centimetre (1 cm3), they are both the smallest and one of the most venomous jellyfish in the world. They inhabit the northern marine waters of Australia. This type of jellyfish reproduces sexually with eggs and sperm. They fire their stingers into their victim, causing a condition known in humans as Irukandji syndrome, which can be fatal. There are about 16 known species of Irukandji, of which ''Carukia barnesi'', ''Malo kingi'', '' Malo maxima'', '' Malo filipina'' and '' Malo bella'' are the best known.Crew, Becky"The Smallest and Deadliest Kingslayer in the World" October 7, 2013, ''Scientific American'' blog, retrieved Nov. 6, 2016 Irukandji syndrome was named in 1952 by Hugo Flecker, who first described the symptoms of envenoming by this jellyfish. The syndrome was named after the Irukandji people, whose region stretches a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jack Barnes (toxinologist)
John Handyside (Jack) Barnes MBE (1922–1985) was a physician and toxinologist in Queensland, Australia. Born in Charleville he is known for his research on the box jellyfish. Amongst other things, he established that their toxin would not discharge on a synthetic surface and so wore pantyhose Pantyhose, called sheer tights, or tights, are close-fitting legwear covering the wearer's body from the waist to the toes. Mostly considered to be a garment for women and girls, pantyhose first appeared on store shelves in 1959 for the advert ... when collecting specimens, a practice now adopted by lifesavers at risk of jellyfish stings. References {{DEFAULTSORT:Barnes, Jack Australian Members of the Order of the British Empire Australian scientists 1922 births 1985 deaths People from Queensland People educated at Brisbane Grammar School University of Queensland alumni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Drewe
Robert Duncan Drewe (born 9 January 1943) is an Australian novelist, non-fiction and short story writer. Biography Robert Drewe was born on 9 January 1943 in Melbourne, Victoria (state), Victoria. At the age of six, he moved with his family to Perth, Western Australia, Perth. He grew up on the West Australian coast and was educated at Hale School. He joined ''The West Australian'' as a cadet reporter. Three years later he was recruited by ''The Age'', where he became Sydney chief at the age of 21, later Literary Editor of ''The Australian''.Murray WaldrenRob Drewe: The Diviner(1996) Interview first published in ''The Australian Magazine''. Accessed: 11 October 2007 He was a columnist, features editor and special writer on ''The Australian'' and ''The Bulletin (Australian periodical), The Bulletin''. Drewe won two Walkley Awards for journalism while working for ''The Bulletin''. He was awarded a Leader Grant travel scholarship by the United States Government. During the 1970 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oasis (TV Channel)
Love Nature is a Canadian-based specialty television channel. The channel broadcasts documentaries and television series related to wildlife and nature. The channel's Canadian operations are owned solely by Blue Ant Media, while the international operations are jointly owned by Blue Ant Media, Rock Entertainment Holdings and Smithsonian Networks. History As Oasis HD In August 2005, John S. Panikkar (co-founder of the channel's original owner, High Fidelity HDTV), was granted a licence by the Canadian Radio-television and Telecommunications Commission (CRTC) to launch ''OasisHD'', described as ''"a national English-language Category 2 high definition specialty programming undertaking... featuring urban and wild landscapes by Canadian and international cinematographers."'' The channel launched in Canada on March 12, 2006, as Oasis HD, focusing on wildlife and nature programming, similar to its current format. On December 21, 2011, High Fidelity HDTV announced that it had enter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biological Life Cycle
In biology, a biological life cycle (or just life cycle or lifecycle when the biological context is clear) is a series of changes in form that an organism undergoes, returning to the starting state. "The concept is closely related to those of the life history, development and ontogeny, but differs from them in stressing renewal." Transitions of form may involve growth, asexual reproduction, or sexual reproduction. In some organisms, different "generations" of the species succeed each other during the life cycle. For plants and many algae, there are two multicellular stages, and the life cycle is referred to as alternation of generations. The term life history is often used, particularly for organisms such as the red algae which have three multicellular stages (or more), rather than two.Dixon, P.S. 1973. ''Biology of the Rhodophyta.'' Oliver & Boyd. Life cycles that include sexual reproduction involve alternating haploid (''n'') and diploid (2''n'') stages, i.e., a change of pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nematocyst
A cnidocyte (also known as a cnidoblast or nematocyte) is an explosive cell containing one large secretory organelle called a cnidocyst (also known as a cnida () or nematocyst) that can deliver a sting to other organisms. The presence of this cell defines the phylum Cnidaria (corals, sea anemones, hydrae, jellyfish, etc.). Cnidae are used to capture prey and as a defense against predators. A cnidocyte fires a structure that contains a toxin within the cnidocyst; this is responsible for the stings delivered by a cnidarian. Structure and function Each cnidocyte contains an organelle called a cnida, cnidocyst, nematocyst, ptychocyst or spirocyst. This organelle consists of a bulb-shaped capsule containing a coiled hollow tubule structure attached to it. An immature cnidocyte is referred to as a cnidoblast or nematoblast. The externally oriented side of the cell has a hair-like trigger called a cnidocil, which is a mechano- and chemo-receptor. When the trigger is activated, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toxicon
''Toxicon'' is a peer-reviewed scientific journal of toxinology and the official journal of the International Society on Toxinology and the North American Society of Toxinology. It is published by Elsevier and the editor-in-chief is Ray Norton. It aims to publish original research, novel findings, and review papers on toxins and their chemical, toxicological, pharmacological, and immunological properties. The journal was established in 1962. According to the ''Journal Citation Reports'', ''Toxicon'' has a 2020 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as i ... of 3.033. References External links * {{Official, http://www.elsevier.com/wps/find/journaldescription.cws_home/259/description Publications established in 1962 Elsevier academic journals English-languag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Townsville
Townsville is a city on the north-eastern coast of Queensland, Australia. With a population of 180,820 as of June 2018, it is the largest settlement in North Queensland; it is unofficially considered its capital. Estimated resident population, 30 June 2018. Townsville hosts a significant number of governmental, community and major business administrative offices for the northern half of the state. Part of the larger local government area of the City of Townsville, it is in the dry tropics region of Queensland, adjacent to the central section of the Great Barrier Reef. The city is also a major industrial centre, home to one of the world's largest zinc refineries, a nickel refinery and many other similar activities. As of December 2020, $30M operations to expand the Port of Townsville are underway, which involve channel widening and installation of a 70-tonne Liebherr Super Post Panamax Ship-to-Shore crane, to allow much larger cargo and passenger ships to utilise the port. It is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Palm Island
Great Palm Island, usually known as Palm Island, is the largest island in the Palm Islands group off Northern Queensland, Australia. It is known for its Aboriginal community, the legacy of an Aboriginal reserve, the Palm Island Aboriginal Settlement (also known as "the Mission"). The original inhabitants of the island (and others in the group) were the Manbarra people, also known as the Wulgurukaba, who were removed to the mainland by the Queensland Government in the 1890s. The island is also sometimes referred to as Bwgcolman, which is the name given to the Aboriginal and Torres Strait Islander people from disparate groups who were deported from many areas of Queensland to the reserve in 1918, and their descendants. The island has an area of . The official area figure of refers to Aboriginal Shire of Palm Island, which includes nine smaller islands. It is off the east coast of Northern Queensland, situated northwest of Townsville, and north of the Tropic of Capricorn. It co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Queensland
North Queensland or the Northern Region is the northern part of the Australian state of Queensland that lies just south of Far North Queensland. Queensland is a massive state, larger than many countries, and its tropical northern part has been historically remote and undeveloped, resulting in a distinctive regional character and identity. Townsville is the largest urban centre in North Queensland, leading it to be regarded as an unofficial capital. The region has a population of 231,628 and covers . Geography There is no official boundary that separates North Queensland from the rest of the state. Unofficially it is usually considered to have a southern border beginning south of the Mackay Region southern boundary, but historically it has been as far south as Rockhampton. To the north is the Far North Queensland region, centred on Cairns and out west is the Gulf Country. A coastal region centred on its largest settlement is the city of Townsville. The city is the locatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medical Journal Of Australia
The ''Medical Journal of Australia'' is a peer-reviewed medical journal published 22 times a year. It is the official journal of the Australian Medical Association, published by Wiley on behalf of the Australasian Medical Publishing Company. The journal publishes editorials, original research, guideline summaries, narrative reviews, perspectives, medical education, reflections, and letters. The full text of every issue since January 2002 is available online. History Early origins The journal was established in 1856, when communication between Australian states and other English-speaking nations entailed long delays. The journal was both a platform for Australian medical research, as well as educational reviews summarising research done overseas. It has since been renamed several times: *''Australian Medical Journal'' (1856–1895) *''Intercolonial Quarterly Journal of Medicine and Surgery'' (1895–1896) *''Intercolonial Medical Journal of Australasia'' (1896–1909) *''Australian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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