Scientists estimate these sharks, the ancestors of the modern day mako shark, could grow larger than 50 feet long.
“I belong to at least 20 groups,” said Amit Slonim, an editor and writer at mako.
"large blue shark," listed as 1727 in OED, from "The History of Japan," English translation of Engelbert Kaempfer's German manuscript; however this is claimed by some to be an error, and some say Kaempfer's word represents Japanese makkô(-kujira) "sperm whale." But the description in the text fits neither the shark nor the whale. The word is ultimately from Maori mako "shark, shark's tooth," which is of uncertain etymology. If the 1727 citation is an error, the next OED entry is for 1820, from a book on New Zealand languages.