[["They don\u2019t have lungs, An octopus breathes in the same manner that all fish breathe, which is through gills.", 104.0], ["Octopi have a closed respiratory system. They do not have lungs. They breath threw gill's.", 40.0], ["The oxygen requirements of octopus are greater than those required by other mollusks and fish. Octopuses have three hearts, two of which pump blood across the two gills, where oxygen exchange takes place.", 0.0]]
how many lungs does an octopus have
animals,octopus,squid,jellyfish