How Many Legs?

Product Information

Carefoot, Thomas. "Octopuses and Relatives: Prey handling and drilling". A Snail's Odyssey. Archived from the original on 6 June 2017 . Retrieved 21 April 2017. Caterpillars are a form of grub: Grubs are the larval stage of any insects. Since butterflies and moths have prolegs they are called caterpillars instead of just grubs. Wodinsky, Jerome (1977). "Hormonal Inhibition of Feeding and Death in Octopus: Control by Optic Gland Secretion". Science. 198 (4320): 948–951. Bibcode: 1977Sci...198..948W. doi: 10.1126/science.198.4320.948. PMID 17787564. S2CID 22649186.

Hanlon, R. T.; Messenger, J. B. (1998). Cephalopod Behaviour (1sted.). Cambridge University Press. pp.80–81, 111. ISBN 978-0-521-64583-6. Respiration involves drawing water into the mantle cavity through an aperture, passing it through the gills, and expelling it through the siphon. The ingress of water is achieved by contraction of radial muscles in the mantle wall, and flapper valves shut when strong circular muscles force the water out through the siphon. [42] Extensive connective tissue lattices support the respiratory muscles and allow them to expand the respiratory chamber. [43] The lamella structure of the gills allows for a high oxygen uptake, up to 65% in water at 20°C (68°F). [44] Water flow over the gills correlates with locomotion, and an octopus can propel its body when it expels water out of its siphon. [43] [41] Like other cephalopods, octopuses have camera-like eyes, [48] and can distinguish the polarisation of light. Colour vision appears to vary from species to species, for example being present in O. aegina but absent in O. vulgaris. [57] Opsins in the skin respond to different wavelengths of light and help the animals choose a coloration that camouflages them; the chromatophores in the skin can respond to light independently of the eyes. [58] [59]

Rabbit and Bear: The Pest in the Nest

Most young octopuses hatch as paralarvae and are planktonic for weeks to months, depending on the species and water temperature. They feed on copepods, arthropod larvae and other zooplankton, eventually settling on the ocean floor and developing directly into adults with no distinct metamorphoses that are present in other groups of mollusc larvae. [26] Octopus species that produce larger eggs – including the southern blue-ringed, Caribbean reef, California two-spot, Eledone moschata [73] and deep sea octopuses – instead hatch as benthic animals similar to the adults. [71] :74–75

Fry, B. G.; Roelants, K.; Norman, J. A. (2009). "Tentacles of Venom: Toxic Protein Convergence in the Kingdom Animalia". Journal of Molecular Evolution. 68 (4): 311–321. Bibcode: 2009JMolE..68..311F. doi: 10.1007/s00239-009-9223-8. ISSN 0022-2844. PMID 19294452. S2CID 13354905. Medial: Providers also call the medial part of the thigh, the hip adductors. You have five medial thigh muscles (on the inner part of your thigh). They are: Insects having fossorial legs stay underground and use their incredibly modified legs, commonly the forelegs, to dig their burrows. Fossorial legs are similar to shovels, thus helping in tearing soil aside very fast and effortlessly, thus permitting the insect to bury itself within the ground pretty fast. How many antennae do insects have?Stamper, Kory. Ask the editor: octopus. Merriam-Webster. Archived from the original on 30 April 2013 . Retrieved 26 June 2013. Strangely enough, no centipede has 100 legs since the number of their pairs of feet is actually always odd. That said, those appendages may exceed a hundred in number – or even fall far below it. Centipedes are made up of segments, each of which bears a pair of legs. Studying the legs of a butterfly can be a challenging task. These insects always seem to be on the move! A butterfly’s legs and wings are very delicate. So, it’s best to avoid trying to capture and hold this insect. But there are some ways to study them without risking their safety. Some butterflies, in the Nymphalidae family, including the Monarch, hold their forelegs close to their bodies, making it look as if they have four legs.

Stevenson, Angus; Lindberg, Christine A., eds. (2010). New Oxford American Dictionary (3rded.). Oxford University Press. ISBN 978-0-19-539288-3. Godfrey-Smith, Peter (2018). Other Minds: The Octopus, the Sea, and the Deep Origins of Consciousness. William Collins. pp.77–105, 137–157. ISBN 978-0-00-822629-9. Only The Top 1% Can Ace our Animal Quizzes Think You Can? Take Our A-Z-Animals Butterfly Quiz How Many Legs Does a Butterfly Have? The giant Pacific octopus (Enteroctopus dofleini) is often cited as the largest known octopus species. Adults usually weigh around 15kg (33lb), with an arm span of up to 4.3m (14ft). [19] The largest specimen of this species to be scientifically documented was an animal with a live mass of 71kg (157lb). [20] Much larger sizes have been claimed for the giant Pacific octopus: [21] one specimen was recorded as 272kg (600lb) with an arm span of 9m (30ft). [22] A carcass of the seven-arm octopus, Haliphron atlanticus, weighed 61kg (134lb) and was estimated to have had a live mass of 75kg (165lb). [23] [24] The smallest species is Octopus wolfi, which is around 2.5cm (1in) and weighs less than 1g (0.035oz). [25] External characteristicsFurther, these structures of legs are jointed appendages that consist of three pairs, each for a thoracic segment. There are other names that can substitute the name of 'forelegs'; they are prothoracic, midlegs mesothoracic, and hind-legs metathoracic. How many legs does an average insect have? a b Carefoot, Thomas. "Octopuses and Relatives: Locomotion, Crawling". A Snail's Odyssey. Archived from the original on 22 May 2013 . Retrieved 19 April 2017. Huffard, C. L.; Boneka, F.; Full, R. J. (2005). "Underwater Bipedal Locomotion by Octopuses in Disguise". Science. 307 (5717): 1927. doi: 10.1126/science.1109616. PMID 15790846. S2CID 21030132. Wells, Martin J.; Wells, J. (1972). "Optic glands and the state of the testis in Octopus". Marine Behaviour and Physiology. 1 (1–4): 71–83. doi: 10.1080/10236247209386890. Mather, J. A.; Anderson, R. C.; Wood, J. B. (2010). Octopus: The Ocean's Intelligent Invertebrate. Timber Press. ISBN 978-1-60469-067-5.

Smedley, Edward; Rose, Hugh James; Rose, Henry John (1845). Encyclopaedia Metropolitana, Or, Universal Dictionary of Knowledge: Comprising the Twofold Advantage of a Philosophical and an Alphabetical Arrangement, with Appropriate Engravings. B. Fellowes. pp.255–.

Follow us

If you have severe or sudden calf pain that doesn’t improve after a day or two of rest, call your provider. Calf pain and other symptoms of a muscle strain may actually be signs of a serious medical condition, such as a blood clot, deep vein thrombosis (DVT), nerve damage or Achilles tendonitis.