There's no food and few insects to feed on. 这里没有食物 可以吃的昆虫也很少

42. Gelados have a busy daily schedule
    狮尾狒全天的日程表排得很满
43. and there's work to be done.
    还有很多事情要做
44. Most monkeys couldn't live up here.
    大部分猴类都无法在此生存
45. There's no food and few insects to feed on.
    这里没有食物 可以吃的昆虫也很少
46. But Gelados are unique -
    但是狮尾狒却很特别
47. they're the only monkeys in the world that live almost entirely on grass.
    它们是世界上唯一完全以草为生的猴子
48. They live in the largest assemblies formed by any monkeys.
    它们生活的社群是所有猴类中最大的

来自《行星地球 第一季 第二集 Planet Earth S01E02 山地》第 45 行