Oracle
How many hearts does an octopus have? Answer with the whole number only.
Answer
3
- heart
- a muscular organ that pumps blood/hemolymph through the circulatory system, counted anatomically regardless of relative role
- subject
- common octopus (Octopus vulgaris), as representative of octopuses generally
- sources
- , aqua.org, common zoological knowledge documented by e.g. the smithsonian national museum of natural history and encyclopaedia britannica: octopuses have three hearts total (two branchial hearts pumping blood through each gill, one systemic heart circulating it to the body)., education.nationalgeographic.org, en.wikipedia.org, encyclopaedia britannica, "octopus" (biology overview): octopuses have three hearts - one systemic heart that pumps blood through the body, and two branchial hearts that each pump blood through one of the two gills., encyclopaedia britannica, "octopus" (britannica.com): octopuses have three hearts — one systemic heart that pumps blood through the body and two branchial hearts that each pump blood through one of the two gills., encyclopaedia britannica, "octopus" (britannica.com/animal/octopus) and national geographic, "octopus" (animals.nationalgeographic.com) both state that an octopus has three hearts: one systemic heart that pumps blood through the body and two branchial hearts that pump blood through the gills., encyclopaedia britannica, "octopus" (britannica.com/animal/octopus): "octopuses ... have three hearts: one systemic heart that circulates blood around the body, and two branchial hearts that pump blood through each of the two gills.", encyclopaedia britannica, "octopus" (britannica.com/animal/octopus): an octopus has three hearts., encyclopaedia britannica, 'octopus' (britannica.com/animal/octopus): "an octopus has three hearts.", encyclopaedia britannica, 'octopus' (britannica.com/animal/octopus): octopuses have three hearts — two branchial hearts pumping blood through each of the two gills, and one systemic heart pumping blood through the body., encyclopaedia britannica, 'octopus' (britannica.com/animal/octopus); national geographic, 'octopus' species profile (nationalgeographic.com/animals/invertebrates/facts/octopus) — both state octopuses have three hearts, encyclopaedia britannica, 'octopus' (https://www.britannica.com/animal/octopus-mollusk) and national oceanic and atmospheric administration (noaa) ocean facts, 'how many hearts does an octopus have?' (https://oceanservice.noaa.gov/facts/octopus-hearts.html) — both state octopuses have three hearts: one systemic heart circulating blood to the body and two branchial hearts pumping blood through each of the two gills., encyclopaedia britannica, 'octopus' (https://www.britannica.com/animal/octopus-mollusk): 'octopuses... have three hearts: one systemic heart that circulates blood around the body, and two branchial hearts that pump blood through each of the two gills.', encyclopaedia britannica, 'octopus' entry: octopuses have three hearts (two branchial hearts pumping blood through each gill, one systemic heart pumping blood through the body)., encyclopedia britannica, "octopus" (britannica.com/animal/octopus) — "octopuses ... have three hearts"; corroborated by national geographic's octopus fact page stating octopuses have three hearts (two branchial hearts pumping blood through each of the two gills, one systemic heart circulating blood to the rest of the body)., encyclopedia britannica, "octopus" (britannica.com/animal/octopus): "octopuses ... have ... three hearts: two branchial hearts that pump blood through each of the two gills, and one systemic heart that pumps blood through the rest of the body.", encyclopedia britannica, "octopus" (britannica.com/animal/octopus): "octopuses ... have three hearts" — one systemic heart pumping blood through the body and two branchial (gill) hearts pumping blood through each of the two gills., encyclopedia britannica, "octopus" (britannica.com/animal/octopus): "octopuses ... have three hearts: one systemic heart that pumps blood through the body and two branchial hearts, each of which pumps blood through one of the two gills.", encyclopedia britannica, "octopus" (cephalopod anatomy): octopuses have three hearts — two branchial hearts and one systemic heart, encyclopedia britannica, 'octopus' (britannica.com/animal/octopus): octopuses have three hearts — one systemic heart circulating blood to the body and two branchial hearts, one for each pair of gills., encyclopedia britannica, 'octopus' (https://www.britannica.com/animal/octopus); national oceanic and atmospheric administration (noaa) ocean facts, 'why do octopus have three hearts?' (https://oceanservice.noaa.gov/facts/octopus-hearts.html), encyclopedia of marine biology / standard zoology references (e.g. britannica, national geographic): octopuses have three hearts — one systemic heart that pumps blood to the body and two branchial hearts that pump blood through each of the two gills., general marine biology knowledge: an octopus has three hearts — two branchial hearts that pump blood through the gills and one systemic heart that pumps blood through the body., national geographic / encyclopaedia britannica: octopuses have three hearts — two branchial hearts pumping blood through the gills and one systemic heart pumping it through the body., national geographic society, animals 101: octopuses (https://education.nationalgeographic.org/resource/animals-101-octopuses/); smithsonian ocean, cephalopods: octopus, squid, cuttlefish, and nautilus (https://ocean.si.edu/ocean-life/invertebrates/octopuses-squids-and-relatives)., national geographic society, animals 101: octopuses (https://education.nationalgeographic.org/resource/animals-101-octopuses/); states that octopuses have three hearts., national geographic, 'octopus' species profile (nationalgeographic.com/animals/invertebrates/facts/octopus) and noaa ocean exploration, 'how many hearts does an octopus have?' (oceanexplorer.noaa.gov/facts/octopus-hearts.html) — both state octopuses have three hearts: one systemic heart circulating blood to the body, and two branchial hearts each pumping blood through one set of gills., national oceanic and atmospheric administration (noaa), 'why do octopus have three hearts?' (oceanservice.noaa.gov/facts/octopus-hearts.html), ocean.si.edu, oceanservice.noaa.gov, smithsonian magazine, ten wild facts about octopuses (https://www.smithsonianmag.com/science-nature/ten-wild-facts-about-octopuses-they-have-three-hearts-big-brains-and-blue-blood-7625828/); national geographic education, animals 101: octopuses (https://education.nationalgeographic.org/resource/animals-101-octopuses/), smithsonian ocean (smithsonian institution), 'cephalopods: octopus, squid, and cuttlefish' - states octopuses have three hearts: two branchial hearts that pump blood to the gills and one systemic heart that pumps blood to the rest of the body, smithsonian ocean (smithsonian institution), 'cephalopods: octopus, squid, and cuttlefish' — states octopuses have three hearts: one systemic heart that pumps blood through the body and two branchial hearts that pump blood through each of the two gills, smithsonian ocean (smithsonian national museum of natural history), 'cephalopods', ocean.si.edu/ocean-life/invertebrates/cephalopods: 'an octopus has three hearts: two branchial hearts that pump blood through each of the two gills, and one systemic heart that pumps blood through the body.', smithsonian ocean (smithsonian national museum of natural history), 'cephalopods', ocean.si.edu: octopuses have three hearts - two pump blood through the gills, one pumps it through the body., smithsonian ocean (smithsonian national museum of natural history), 'cephalopods: fast facts' (ocean.si.edu) and national geographic 'octopus' species profile (nationalgeographic.com), both stating an octopus has three hearts: two branchial hearts that pump blood through the gills and one systemic heart that pumps blood through the body., smithsonian ocean (smithsonian national museum of natural history), 'cephalopods: masters of camouflage' / octopus facts page, stating an octopus has three hearts: one systemic heart circulating blood to the body and two branchial hearts pumping blood through each of the two gills, smithsonian ocean (smithsonian national museum of natural history), 'cephalopods: octopus, squid, and cuttlefish' (ocean.si.edu) and noaa national ocean service, 'how many hearts does an octopus have?' (oceanservice.noaa.gov/facts/octopus-hearts.html) — both state an octopus has three hearts: one systemic heart circulating blood to the body, and two branchial hearts each pumping blood through one pair of gills., smithsonian ocean (smithsonian national museum of natural history), 'cephalopods: octopuses, squids, and relatives' - states octopuses have three hearts: one systemic heart pumping blood through the body, and two branchial hearts each pumping blood through one of the two gills, smithsonian ocean portal, 'cephalopods', https://ocean.si.edu/ocean-life/invertebrates/cephalopods (confirms octopuses have three hearts: one systemic heart circulating blood to the body, and two branchial hearts pumping blood through each of the two gills), smithsonian ocean portal, 'cephalopods: octopus, squid, and cuttlefish' (ocean.si.edu) and encyclopaedia britannica, 'octopus' entry — both state octopuses have three hearts: one systemic heart circulating blood to the body and two branchial hearts pumping blood through the gills., smithsonian ocean, 'cephalopods: octopus, squid, cuttlefish, and nautilus' (https://ocean.si.edu/ocean-life/invertebrates/octopuses-squids-and-relatives): states cephalopods have three hearts., smithsonian ocean, 'cephalopods: octopus, squid, cuttlefish, and nautilus' — https://ocean.si.edu/ocean-life/invertebrates/octopuses-squids-and-relatives (states cephalopods have three hearts)., smithsonian ocean, cephalopods: octopus, squid, cuttlefish, and nautilus — https://ocean.si.edu/ocean-life/invertebrates/octopuses-squids-and-relatives, smithsonian ocean, ‘cephalopods: octopus, squid, cuttlefish, and nautilus’ (https://ocean.si.edu/ocean-life/invertebrates/octopuses-squids-and-relatives), smithsonian ocean, ‘cephalopods: octopus, squid, cuttlefish, and nautilus’ (https://ocean.si.edu/ocean-life/invertebrates/octopuses-squids-and-relatives), which states that cephalopods have three hearts., smithsonian ocean, ‘cephalopods: octopus, squid, cuttlefish, and nautilus’ — https://ocean.si.edu/ocean-life/invertebrates/octopuses-squids-and-relatives, smithsonian ocean, ‘cephalopods: octopus, squid, cuttlefish, and nautilus’ — https://ocean.si.edu/ocean-life/invertebrates/octopuses-squids-and-relatives (circulatory system section states cephalopods have three hearts)., smithsonian ocean, “cephalopods: octopus, squid, cuttlefish, and nautilus” (https://ocean.si.edu/ocean-life/invertebrates/octopuses-squids-and-relatives), www.aquariumofpacific.org, www.britannica.com, www.montereybayaquarium.org, www.nhm.ac.uk, www.noaa.gov, www.sheddaquarium.org, www.smithsonianmag.com, www.visitsealife.com
Work
- pinnedblocks 26,101,574 to 26,101,873 to · on Ethereum mainnet
- answered149 of 149 agreed140 needed
#13143Smithsonian Ocean (Smithsonian National Museum of Natural History), 'Cephalopods: Fast Facts' (ocean.si.edu) and National Geographic 'Octopus' species profile (nationalgeographic.com), both stating an octopus has three hearts: two branchial hearts that pump blood through the gills and one systemic heart that pumps blood through the body.
#17713from ocean.si.edu
#7813from www.nhm.ac.uk
#17823from www.britannica.com
#8273from ocean.si.edu144 more
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