![]() The 54 species in subfamily Hydrophiinae belong to 16 different genera. Sea snakes give birth in the ocean to an average of 2–9 young, but as many as 34 may be born. Moreover, a 2019 study of the blue-banded sea snake (or annulated sea snake, Hydrophis cyanocinctus) found a highly vascularized area between the snout and the top of the head, which allows oxygen to be transported directly from the water to the snake’s brain. More than 90 percent of waste carbon dioxide and 33 percent of their oxygen requirement can be transported via cutaneous respiration. This remarkable feat is partly due to the fact that they can breathe through their skin. Sea snakes can remain submerged for several hours, possibly as much as eight or more. When swimming, a keel is formed along part of the belly, increasing surface area and aiding propulsion, which occurs by lateral undulation. As a result, the advanced species cannot crawl and are thus helpless on land. The belly scales are reduced in size in the primitive species, whereas in the more advanced forms they are absent. Their scales are very small and usually not overlapping (juxtaposed), abutting against one another like paving stones. In adaptation to marine life, true sea snakes have a flattened body with a short oarlike tail, valvular nostrils on top of the snout, and elongated lungs that extend the entire length of the body. SpaceNext50 Britannica presents SpaceNext50, From the race to the Moon to space stewardship, we explore a wide range of subjects that feed our curiosity about space!.Learn about the major environmental problems facing our planet and what can be done about them! ![]() Saving Earth Britannica Presents Earth’s To-Do List for the 21st Century.100 Women Britannica celebrates the centennial of the Nineteenth Amendment, highlighting suffragists and history-making politicians.COVID-19 Portal While this global health crisis continues to evolve, it can be useful to look to past pandemics to better understand how to respond today.Student Portal Britannica is the ultimate student resource for key school subjects like history, government, literature, and more.This Time in History In these videos, find out what happened this month (or any month!) in history.#WTFact Videos In #WTFact Britannica shares some of the most bizarre facts we can find.Demystified Videos In Demystified, Britannica has all the answers to your burning questions.New World coral snakes range in size from 40 to 160 cm (16 to 63 inches) and are classified in two genera ( Micruroides and Micrurus ) they are found mainly in the tropics. Britannica Classics Check out these retro videos from Encyclopedia Britannica’s archives. coral snake, any of more than 100 species of small, secretive, and brightly patterned venomous snakes of the cobra family ( Elapidae ).Britannica Explains In these videos, Britannica explains a variety of topics and answers frequently asked questions.Ideal for use by strategic planners, process managers, brand managers, etc… Carry your audience along and show the relationship between process and how they flow together. ![]() The pre-designed snake diagram PPT template can work well when covering data or organizational process flow in a streamlined manner. The snake diagram template can be edited and customized to suit personal taste. The slides contain linked circles, arrows and square waveform to show serpentine motion typical of snake diagrams. The snake diagram template contains 4 slides featuring color-coded graphics in visually appealing layout. During presentation, the slides can be used to outline each task the company must accomplish to meet its overall objectives. The snake diagram template for PowerPoint is a four-slide process template that is ideal for business strategic planning or project milestones presentation. Show data-specific relationship and keep your audience engaged.
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