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Myrmecia Esuriens
''Myrmecia esuriens'', also known as Tasmanian inchman, is a species of bulldog ant native to Tasmania. Morphology The largest size of this bull ant species is reached by the queen, about long. Males ( "drones") grow to , and the worker ants average long. Within its genus, ''M. esuriens'' is a medium-sized species, as sizes for ''Myrmecia'' range from to more than . The main body of the ant is black with a single segment of the abdomen, the postpetiole, coloured an orange-red. The mandibles, antennae, and legs of the ants are also orange-red. The hair on the ant is yellow, and is short on the head, thorax, and legs and longer on the gaster. No hair is present on the scapes. The mandibles are long and straight, and of the 11 teeth present, the third, fifth, seventh, and ninth are wider and longer than the other seven. The Tasmanian inchman has good eyesight, useful outside of the nest for defence and foraging. Unusually for ants, the queens are apterous (i.e., win ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ergatoid
An ergatoid (from Greek '' ergat-'', "worker" + ''-oid'', "like") is a permanently wingless reproductive adult ant or termite. The similar but somewhat ambiguous term ergatogyne refers to any intermediate form between workers and standard gynes. Ergatoid queens are distinct from other ergatogyne individuals in that they are morphologically consistent within a species and are always capable of mating, whereas inter caste individuals, another class of ergatogynes, often are not. Ergatoids can exhibit wide morphological differences between species, sometimes appearing almost identical to normal workers and other times being quite distinct from both workers and standard queens. In addition to morphological features, ergatoids among different species can exhibit a wide range of behaviors, with some ergatoids acting only as reproductives and others actively foraging. Ergatoid queens have developed among a large number of ant species, and their presence within colonies can often provide c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insects Described In 1858
Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. Their blood is not totally contained in vessels; some circulates in an open cavity known as the haemocoel. Insects are the most diverse group of animals; they include more than a million described species and represent more than half of all known living organisms. The total number of extant species is estimated at between six and ten million; In: potentially over 90% of the animal life forms on Earth are insects. Insects may be found in nearly all environments, although only a small number of species reside in the oceans, which are dominated by another arthropod group, crustaceans, which recent research has indicated insects are nested within. Nearly all insects hatch from eggs. Insect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Anderson (naturalist)
William Anderson (28 December 1750 in North Berwick, East Lothian – 3 August 1778 in Bering Sea) was a Scottish naturalist. Biography One of the seven children Jean (née Melvil) and Robert Anderson, a schoolmaster. Anderson studied medicine at the University of Edinburgh from 1766–68. He enlisted in the navy and qualified on 1 December 1768 as surgeon's first mate, being promoted to surgeon on 1 November 1770 and posted to the vessel (1768–1819). Anderson accompanied James Cook on his second voyage, boarding the ''Resolution'' on 12 December 1771 as surgeon's mate. Anderson proved to be diligent and was chosen to accompany Cook on his third voyage as surgeon and naturalist, joining the ''Resolution'' again on 15 February 1776. Though he had received no formal training as a naturalist, Anderson proved to be more than capable. He described and put together a large collection of specimens for Joseph Banks and added considerably to the knowledge of Pacific languag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adventure Bay, Tasmania
Adventure Bay is the name of a locality, a township and a geographical feature on the eastern side of Bruny Island, Tasmania. At the , Adventure Bay had a population of 218. Early history The first European to sight the bay was explorer Abel Tasman, who sought to anchor his vessel ''Heemskerck'' there in 1642. Instead, ''Heemskerck'' was driven back offshore by a storm, in token of which Tasman named the place Storm Bay. Captain Tobias Furneaux renamed it in March 1773, in honour of his ship , which he had anchored in the bay for five days after becoming separated from Captain James Cook's during Cook's second voyage to the Pacific search of Terra Australis Incognita. Furneaux's log made clear the bay was an excellent anchorage for resupplying vessels:To the SW of the first watering place there is a large lagoon which I believe has plenty of fish in it for one of our Gentlemen caught upwards of 2 dozen trout, and shot a possum which was the only animal we saw. There are a g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HMS Discovery (1774)
HMS ''Discovery'' was the consort ship of James Cook's third expedition to the Pacific Ocean in 1776–1780. Like Cook's other ships, ''Discovery'' was a Whitby-built collier originally named ''Diligence'' when she was built in 1774. Purchased in 1775, the vessel was measured at 299 tons burthen. Originally a brig, Cook had her changed to a full-rigged ship. She was commanded by Charles Clerke, who had previously served on Cook's first two expeditions, and had a complement of 70. After Cook was killed in a skirmish following his attempted kidnapping of Hawaiian leader Kalaniʻōpuʻu, Clerke transferred to the expedition's flagship HMS ''Resolution'' and John Gore assumed command of ''Discovery''. She returned to Britain under the command of Lieutenant James King, arriving back on 4 October 1780. After returning to the Nore in 1780, ''Discovery'' was fitted out as a transport at Woolwich Dockyard, serving as such between December 1780 and May 1781. She then became a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HMS Resolution (1771)
HMS ''Resolution'' was a sloop of the Royal Navy, a converted merchant collier purchased by the Navy and adapted, in which Captain James Cook made his second and third voyages of exploration in the Pacific. She impressed him enough that he called her "the ship of my choice", and "the fittest for service of any I have seen". Purchase and refitting ''Resolution'' began her career as the North Sea collier ''Marquis of Granby'', launched at Whitby in 1770, and purchased by the Royal Navy in 1771 for £4,151 (equivalent to £ today). She was originally registered as HMS ''Drake'', but fearing this would upset the Spanish, she was soon renamed ''Resolution'', on 25 December 1771. She was fitted out at Deptford with the most advanced navigational aids of the day, including an azimuth compass made by Henry Gregory, ice anchors, and the latest apparatus for distilling fresh water from sea water. Her armament consisted of 12 6-pounder guns and 12 swivel guns. At his own expense Coo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pteridium Esculentum
''Pteridium esculentum'', commonly known as bracken fern, Austral bracken or simply bracken, is a species of the bracken genus native to a number of countries in the Southern Hemisphere. Esculentum means edible. First described as ''Pteris esculenta'' by German botanist Georg Forster in 1786, it gained its current binomial name in 1908. The Eora people of the Sydney region knew it as '. Morphology ''P. esculentum'' grows from creeping rhizomes, which are covered with reddish hair. From them arise single large roughly triangular fronds, which grow to tall. The fronds are stiff with a brown stripe. Distribution It is found in all states of Australia apart from the Northern Territory, as well as New Zealand, Norfolk Island, Malaysia, Polynesia, and New Caledonia. Within Victoria (Australia), Victoria it is widespread and common to altitudes of . In New South Wales, it occurs across central, eastern and southern parts of the state. It can also be weedy and invade disturbed area ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jack Jumper Ant
Jack may refer to: Places * Jack, Alabama, US, an unincorporated community * Jack, Missouri, US, an unincorporated community * Jack County, Texas, a county in Texas, USA People and fictional characters * Jack (given name), a male given name, including a list of people and fictional characters with the name * Jack (surname), including a list of people with the surname * Jack (Tekken), multiple fictional characters in the fighting game series ''Tekken'' * Jack the Ripper, an unidentified British serial killer active in 1888 * Wolfman Jack (1938–1995), a stage name of American disk jockey Robert Weston Smith * New Jack, a stage name of Jerome Young (1963-2021), an American professional wrestler * Spring-heeled Jack, a creature in Victorian-era English folklore Animals and plants Fish *Carangidae generally, including: **Almaco jack **Amberjack **Bar jack **Black jack (fish) **Crevalle jack **Giant trevally or ronin jack **Jack mackerel **Leather jack **Yellow jack *Coho salmon, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesonotum
The mesothorax is the middle of the three segments of the thorax of hexapods, and bears the second pair of legs. Its principal sclerites (exoskeletal plates) are the mesonotum (dorsal), the mesosternum (ventral), and the mesopleuron (lateral) on each side. The mesothorax is the segment that bears the forewings in all winged insects, though sometimes these may be reduced or modified, as in beetles (Coleoptera) or Dermaptera, in which they are sclerotized to form the elytra ("wing covers"), and the Strepsiptera, in which they are reduced to form halteres that attach to the mesonotum. All adult insects possess legs on the mesothorax. In some groups of insects, the mesonotum is hypertrophied, such as in Diptera, Hymenoptera, and Lepidoptera), in which the anterior portion of the mesonotum (called the mesoscutum, or simply "scutum") forms most of the dorsal surface of the thorax. In these orders, there is also typically a small sclerite attached to the mesonotum that covers the wing ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simple Eyes In Arthropods
A simple eye (sometimes called a pigment pit) refers to a form of eye or an optical arrangement composed of a single lens and without an elaborate retina such as occurs in most vertebrates. In this sense "simple eye" is distinct from a multi-lensed "compound eye", and is not necessarily at all simple in the usual sense of the word. The structure of an animal's eye is determined by the environment in which it lives, and the behavioural tasks it must fulfill to survive. Arthropods differ widely in the habitats in which they live, as well as their visual requirements for finding food or conspecifics, and avoiding predators. Consequently, an enormous variety of eye types are found in arthropods. They possess a wide variety of novel solutions to overcome visual problems or limitations. Use of the term ''simple eye'' is flexible, and must be interpreted in proper context; for example, the eyes of humans and of other large animals such as most cephalopods, are ''camera eyes'' and in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Primitive (phylogenetics)
In phylogenetics, a primitive (or ancestral) character, trait, or feature of a lineage or taxon is one that is inherited from the common ancestor of a clade (or clade group) and has undergone little change since. Conversely, a trait that appears ''within'' the clade group (that is, is present in any subgroup within the clade but not all) is called advanced or derived. A clade is a group of organisms that consists of a common ancestor and all its lineal descendants. A primitive trait is the original condition of that trait in the common ancestor; advanced indicates a notable change from the original condition. These terms in biology contain no judgement about the sophistication, superiority, value or adaptiveness of the named trait. "Primitive" in biology means only that the character appeared first in the common ancestor of a clade group and has been passed on largely intact to more recent members of the clade. "Advanced" means the character has evolved within a later subgroup ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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