(1) Salmon may migrate thousands of miles, but no matter how far they go, they finally return to the rivers in which they were spawned, to produce the next generation. (2) Their journey is an amazing feat. (3) One of the longest of those return journeys is in the Yukon River in Canada, where salmon travel nearly two thousand miles. (4) They travel day and night, with occasional rests in quiet pools. (5) At first, they swim at speeds of ten to twenty miles a day, but then accelerate to as much as sixty miles a day, using their strong tails to propel them. (6) During their entire journey, they eat nothing. (7) After a month, they arrive at their birthplace, sickly and battered. (8) The female soon deposits her eggs, and the male, waiting nearby, releases his sperm. (9) Within days, both adults will die. The pattern of organization is: _______ _______. (Type LIST or TIME.)