'It can measure and track the dynamic signal from its current location without knowing the coordinates.'
. The authors claim that understanding the biological makeup of the sea urchin can be used to create tiny robots that mimic its behavior while taking cues from their environment.Sea urchins are spiny marine animals of the class Echinoidea. They are found in oceans all over the world and have spherical shells covered with spines. The diameter of the shell is usually 3 to 10 cm in adults.clouds of eggs and sperm into the water.
Sea urchin sperm use chemotaxis, in which the cells migrate in response to a chemical stimulation, to locate an egg. Sperm-activating peptide is a substance that is only secreted by sea urchin eggs, and it interacts with the sperm's flagellum to regulate how it beats. This causes the sperm to turn and bend toward the direction of the egg.“Sperm don’t have a GPS,” Abdelgalil says. “They don’t know ahead of time where the egg is.
“As soon as I saw the two pictures, I realized that this is more or less the same,” he says. So, in the new study, Abdelgalil and his colleagues illustrated how key components of the sea urchin sperm’s navigation strategy resemble hallmark features of extremum seeking.Sperm cells perform extremely demanding tasks with minimal capabilities.
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