Why don't ducks get wet?Ducks dip and dive, but they stay dry because they spread oil over their feathers to make them waterproof. Learn more inside and get to know different kinda of ducks. Have you ever wondered how ducks spend the whole day in the water and never get wet? Did you know that they can dive 100 feet deep, and still come up dry? Meet ten different kinds of ducks in this classic text featuring stunning new watercolor illustrations and a new "Find Out More" page.
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居然里面大多数的鸭鸭都不认识~~这本信息量比较大,也是第一次知道ducks身上有oil gland这种东西~~preen, smear, puddle/paddle, dabble, scoop, teal, hiss
评分居然里面大多数的鸭鸭都不认识~~这本信息量比较大,也是第一次知道ducks身上有oil gland这种东西~~preen, smear, puddle/paddle, dabble, scoop, teal, hiss
评分居然里面大多数的鸭鸭都不认识~~这本信息量比较大,也是第一次知道ducks身上有oil gland这种东西~~preen, smear, puddle/paddle, dabble, scoop, teal, hiss
评分居然里面大多数的鸭鸭都不认识~~这本信息量比较大,也是第一次知道ducks身上有oil gland这种东西~~preen, smear, puddle/paddle, dabble, scoop, teal, hiss
评分居然里面大多数的鸭鸭都不认识~~这本信息量比较大,也是第一次知道ducks身上有oil gland这种东西~~preen, smear, puddle/paddle, dabble, scoop, teal, hiss
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