Snowflake of ice. At that stage, the snowflake has the shape of a minute hexagon. The six "arms" of the snowflake, or dendrites, then grow independently from each of the corners of the hexagon, while either side of each arm grows independently. The microenvironment in which the snowflake grows changes dynamically as the snowflake falls through the cloud and tiny changes in temperature and humidity affect the way in which water molecules attach to the snowflake. Since the micro-environment (and its changes) are very nearly identical around the snowflake, each arm tends to grow in nearly the same way. However, being
How to Build a Dinosaur the same time as "Jurassic Park IV", to serve as a scientific companion volume; however, the film was delayed. Horner's book, in hardcover form, was ultimately published by Dutton Penguin on March 19, 2009, without the accompaniment of the film. The book was initially published with the title "How to Build a Dinosaur: Extinction Doesn't Have to Be Forever". A paperback version was published by Plume on February 23, 2010, with the title "How to Build a Dinosaur: The New Science of Reverse Evolution". "Publishers Weekly" called the book "provocative but frustrating", writing that aside from the main concept, "Much