Animals congregate in places where their basic needs can be met: havens from predators where competi[展开全部]
Animals congregate in places where their basic needs can be met: havens from predators where competition for food is manageable and breeding opportunities are abundant. Journey to the habitats of these one-of-a-kind animals and learn their survival stories, from nesting fairy penguins, to migrating caribou.[收起部分]
