进化：Journey of the canids

This short, targeted simulation is adapted from the full-length “Evolution: Founding theories and principles” simulation.

您是否曾经想过，微小，友好的奇瓦瓦人与史前史上的野生和凶猛的祖先犬科动物有何关系？在此模拟中，我们将探讨建立进化论的证据，并将其作为一个物种分支从另一个物种分支分支。

认识狗

Dr One has been caring for her lab assistant’s dogs. The dogs are a variety of breeds and this has got Dr. One wondering about a few things. How is artificial selection different from natural selection? And how did dogs, foxes, and coyotes evolve from an ancient wolf-like species? Return to the lab to find out more.

与山雀殖民地一起旅行

Evolution takes place over millions of years so experimenting with genetic information is practically impossible! In the virtual lab, you can time jump your way through thousands of years at the interactive holotable. Observe the impact of the random mutations you make in an organism’s DNA. Using Hardy-Weinberg theory, you will predict the genetic profile of your colony. Discover how your creatures look and behave after millions of years have passed. Changes to the environment, from a temperate forest to a snowy tundra, will also play a role in the survival of the fittest.

Review your evolutionary exploration

返回实验室助手的狗并查看您的发现。您发现人工选择引人入胜，还是喜欢突变的随机性？到本模拟的结尾，您将了解如何得出演化理论，进化的关键概念以及强壮的温伯格原理。