A convergent plate boundary is a location where two tectonic plates are moving toward each other, often causing one plate to slide below the other (in a process known as subduction). Convergent definition is - tending to move toward one point or to approach each other : converging. 2. Despite their placental affiliations, kangaroo rats (of the rodent family Geomyoidea) and hopping mice (of the rodent family Muridae) hop like tiny kangaroos, the better to escape the larger predators of their respective ecosystems. But they were quickly getting shot down. Excel in math and science. Flight: Flight evolved multiple times, in insects, bats, dinos/birds, and pterodactyls. Initially, most newspapers and other print products had little to no internet presence. If you answered "snakes," you're only half right; you're forgetting caecilians, an obscure family of amphibians that range from the earthworm to rattlesnake sizes. Convergent evolution: Convergent evolution occurs when two organisms that lack a recent common ancestor end up more and more alike as they adapt to a similar ecological niche. Continue below for just a few of the most interesting examples of convergent evolution that have manifested in nature. There was divergent thinking happening - each person was coming up with an “out of the box” idea. Convergent boundary in a subduction zone between a continental plate and an oceanic plate. Convergent thinking isn’t bad or unproductive. Large bodies of frozen magma chambers that make their way to the surface are called plutons. Here, special metamorphic rocks like blueschist can form. Eventually one plate, usually the denser, older, thinner plate, gives and ends up subducting beneath the thicker, more buoyant plate. Ocean-ocean convergent plate boundaries occur where two oceanic plates collide or move toward one another. As shown below, the plates are made of rigid lithosphere consisting of the Earth’s crust and the uppermost mantle. Over time, news outlets recognized the value of integrating new media to deliver real-time content and boost the reach of advertisers. Our flagship product, CONVERGE CFD, is a revolutionary CFD software that eliminates the grid generation bottleneck from the simulation process. 1. Examples of technological convergence. USGS. From this perspective divergent thinking is a kind of problem solving. 2. Spot quiz: what vertebrate animal lacks arms and legs and slithers along the ground? In general, continental crust is more felsic than oceanic crust which makes it less dense (~2.7 g/cm^3). Understanding Transform Boundary: Definition and Useful Examples. How to use convergent in a sentence. These two types of crust lead to three different types of convergent plate boundaries pictured and described below: ocean-continent, ocean-ocean and continent-continent. The Convergys® POC RT-PCR COVID-19 Testing Platform directly detects SARS-CoV-2 genetic material. This type of validity goes hand-in-hand with discriminant validity to create perfect construct validity. Echolocation. Here's yet a third example of convergent evolution between marsupial and placental mammals. Which one gets subducted? Construct validity’s main idea is that a test used to measure a construct is, in fact, measuring a construct. For example, what mental shortcuts do designers use? The person that was critiquing their argument was in “convergent thinking” mode. Like most of the other animals in this slideshow, echidnas and porcupines occupy distantly separated branches of the mammalian family tree. At ~100 km depth, metamorphic reactions in hydrous oceanic rocks and sediments release water into the overlying mantle wedge, which subsequently lowers the melting temperature of these rocks and turns them into magma. Progress Examples of convergent in a sentence, how to use it. Analogous structures arise from convergent evolution, but homologous structures do not. Fossil of Ophthalmosaurus, an extinct ichthyosaur- Senckenberg Museum of Frankfurt. Now, let’s go back to the first example. This ScienceStruck article provides information regarding this boundary is, along with its examples. This is an example of a sequence in mathematics. Convergent thinking isn’t bad or unproductive. Monotremes, the Unique Egg-Laying Mammals, 10 Facts About Mammals Everyone Should Know, Mammals: Definition, Photos, and Characteristics, 10 Recently Extinct Shrews, Bats and Rodents, Meet the Xenarthrans - Armadillos, Sloths, and Anteaters. Convergent validity is a subcategory of construct validity. Convergent Science is an innovative, rapidly expanding computational fluid dynamics (CFD) company. And here's another odd fact about caecilians: these amphibians copulate like mammals (instead of a penis, males possess a "phallodium" that they insert into the female cloaca, in sessions lasting up to two or three hours). While the mantle portion of the lithosphere is made primarily of olivine-rich peridotite, the crust can be broken into one of two types—oceanic or continental. The name Struthiomimus should give you some idea how closely ornithomimid dinosaurs resembled modern ratites. The water soaked oceanic plate forms molten rock that … Digging extremities: The leg of a cricket mole and the leg of a mole both are very similarly built. Pick whatever three you like 1. Since squirrels are placental mammals and sugar gliders are marsupial mammals, we know that they're not closely related, and we also know that nature favors the evolution of billowing flaps of skin when the problem of "how do I get from this tree branch to that tree branch?" Examples of convergent in a sentence, how to use it. … Antelopes are artiodactyls (even-toed hoofed mammals) indigenous to Africa and Eurasia, belong to the Bovidae family, and are most closely related to cows and pigs; pronghorns are also artiodactyls, which live in North America, belong to the Antilocapridae family, and are most closely related to giraffes and okapis. Report on the Radiolaria Collected by H.M.S. 3. Convergent: Where is the capitol of Texas? Convergent evolution is the opposite of divergent evolution, in which related species evolve different traits. This, combined with a lack of water laden oceanic crust and sediments, means that little to no magma makes it to the surface and therefore little to no volcanic activity occurs at these types of convergent boundaries. The organisms have convergent phenotypes, and their similar structural forms are called analogous structures (such as bird wings and bat wings). ... We may want to multiply them together and identify the product as another infinite series. Industry Convergence Examples: Blending Companies to Create New Types of Industries. On land, these form continental volcanic arcs like those we see in the Cascades in western North America. Here's yet a third example of convergent evolution between marsupial and placental mammals. Convergent evolution creates analogous structures that have similar form or function but were not present in the last common ancestor of those groups. Convergent validity, a parameter often used in sociology, psychology, and other behavioral sciences, refers to the degree to which two measures of constructs that theoretically should be related, are in fact related. I don't know what this is. At convergent plate boundaries, they have some of the most violent catastrophes and geology on Earth.When plates smash together, it has created chains of volcanoes. Convergent evolution is the independent evolution of similar features in species of different periods or epochs in time. The former was an ocean-dwelling ichthyosaur ("fish lizard") of the late Jurassic period, 150 million years ago, while the latter is an extant marine mammal. 3. Bob Strauss is a science writer and the author of several books, including "The Big Book of What, How and Why" and "A Field Guide to the Dinosaurs of North America. Salaries posted anonymously by Convergent Science employees. Since both plates are made of basalt, magma generated at these types of convergent boundaries is almost purely basaltic. For example, almost all along the Pacific Ring of Fire, plates collide and sink into the ocean floor at zones of subduction.. Convergent Validity. We've saved the most bizarre example of convergent evolution for last: did you know that koala bears, the Australian marsupials only distantly related to real bears, have fingerprints nearly identical to those of humans? Digging extremities: The leg of a cricket mole and the leg of a mole both are very similarly built. In the following slideshow, you'll discover 10 fascinating examples of convergent evolution at work. One of the little-appreciated facts about evolution is that it usually hits upon the same general solutions to the same general problems: animals that live in similar ecosystems and occupy similar ecological niches often develop similar body plans. All Right Reserved. Sabertooth cat paleoart artificial recreation. But continents don’t always collide with oceans. For example, we could consider the product of the infinite geometric series (1 ... of real terms is called absolutely convergent if the series of positive terms Both humans and octopuses have camera-like eyes with an iris, a lens and a retina — all essential parts of an imaging device. To establish convergent validity, you need to show that measures that should be related are in reality related. The important thing, though, is that dolphins and ichthyosaurs have similar lifestyles, and thus evolved similar anatomies: sleek, hydrodynamic, flippered bodies and long heads with extended snouts. A widespread example of convergent evolution is the evolution of wings and powered flight in birds, bats and (now extinct) pterosaurs, each of which belong to a different class of organism and therefore have very distant common ancestors. convergence are changing the ways that at least some scientists conduct and . Examples of convergent evolution include the relationship between bat and insect wings, shark and dolphin bodies, and vertebrate and cephalopod eyes. 2. Because of the low density of the subducting continental plate, it often ends up “underplating” or sliding horizontally beneath the overlying plate for great distances before eventually subducting into the mantle. Evolution convergent evolution species science animals. Examples of convergent evolution abound, but they're easiest to see in familiar animal species. Smilodon (also known as the Saber-Toothed Tiger) and Thylacosmilus both stalked the grasslands of the early Pleistocene epoch, the former in North America, the latter in South America, and these similar-looking mammals possessed giant, downward-curving canines with which they inflicted fatal puncture wounds on prey. Activity 1 Head- On Collision Part A: Converging Continental Plate and Oceanic Plate Objectives: • Explain the processes that occur along convergent boundaries. As the eroded material moves downslope, it collects in sediment basins either on or offshore. Rain, snow, rivers, glaciers, animals, plant roots and earthquakes all play a role in the breakdown and transportation of rocks downhill at convergent plate boundaries. A test used to measure a construct Fire, plates collide or move toward one another for. 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