Ice skating. Ice skating is the act of moving on ice by using ice skates. It can be done for a variety of reasons, including exercise, leisure, traveling and various sports.
Darwin's evidence for evolution. In his Origin, Darwin presents his evidence supporting descent with modification (branching evolution) in several chapters: A. In Chapters 1 and 2, he considers how patterns of variation in domesticated and wild fauna and flora support descent with modification. B. In Chapters 10-12, he shows how the patterns of species distributions in time and space support branching evolution from common ancestral lineages.
Darwin's observations that led to his theory of natural selection are: 1  Overproduction - all species will produce more offspring than will survive to adulthood. 2  Variation - there are variations between members of the same species. 3  Adaptation - traits that increase suitability to a species' environment will be passed on.