400
Author's Purpose of Passage:
Sequoia and Kings Canyon National Parks support a wide diversity of animal species, reflecting the range in elevation, climate, and habitat variety there. Over 260 native vertebrate species are in the parks; numerous additional species may be present but have not been confirmed. Of the native vertebrates, five species are extirpated (or extinct), and over 150 are rare or uncommon. There have been some studies of invertebrates in the area, but there is not enough information to know how many species occur specifically in the parks. Many of the parks' caves contain invertebrates, some of which exist only in one cave and are known nowhere else in the world.
What is to inform?