How many hearts does an octopus have? 2) The Hagfish Has Four Hearts: Another weird animal with multiple hearts is the Hagfish. Options:- A. giraffe. cuttlefish. Question – Like humans, most species in the animal kingdom have a single heart. With their body shields, they can also attack prey and even human without any fear as well. there is no such animal. They occur worldwide where soil, water, and temperature allow. Compare a dog’s heart to its body mass and it’s a .8 percent ratio. Earthworms are commonly found in soil, eating a wide variety of organic matter. But there is an exception. I think this is the answer….. Let break it down and see what they do: The Main Heart (The systemic hearts) Just like with the octopi, this heart is in charge of pumping the blood around inside the vessels in order to move oxygen and nutrients. Two hearts are dedicated to pumping blood to the gills, while the other takes care of the rest of the body. These animals have special body armors that double protect themselves from their predators. Cephalopods are characterized by three hearts: the central heart, and two additional gill hearts (bronchial hearts) at the base of their gills. Octopuses are highly intelligent animals, masters of camouflage that have evolved an array of tricks over tens of millions of years to avoid or thwart would-be attackers. Prepare chicken hearts the same way (except you don’t have to butcher them). The smallest animal hearts belong to the .006-inch long fairyflies. If the invertebrate structure has suckers along its entire length, it's called an arm; if it only has suckers at the tip, it's called a tentacle. Every 5th level (5, 10, 15) the animal's level indicator on their name-tag will change shape. The giant Pacific octopus has three hearts, nine brains and blue blood, making reality stranger than fiction. An octopus, like its other comrades in the cephalopod world, has three hearts. It has four hearts! Why not explore the 6 most fascinating hearts in the animal kingdom? Which animal has three hearts? But not all hearts are created equal. 10 Octopus. Cuttlefish is a Cephalopod. Levels 0 to 7 have only three hearts, levels 8 - 15 have four hearts, levels 16 - 23 have five hearts, and level 24 or higher will have six hearts. BOSTON (AP) — Mythology and superstition have portrayed octopuses as alien beings or evil creatures dwelling in the terrifying dark depths of oceans. Where cephalopods are concerned, marine biologists are careful to distinguish between "arms" and "tentacles." Almost all other animals — including elephants, mice and humans — have a .6 percent ratio. An earthworm is a terrestrial invertebrate that belongs to the order Opisthopora.They exhibit a tube-within-a-tube body plan, are externally segmented with corresponding internal segmentation, and usually have setae on all segments. 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