How are ducks adapted to their habitat?

1) ducks are waterfowl, swim and dive well; have a swimming membrane between the toes;
2) legs are short, set far back; on land move slowly and awkwardly;
3) the plumage is dense, protects from getting wet; there are air bubbles in the thinnest cavities of feathers;
4) feathers are lubricated with the secret of the coccygeal gland to protect from water, preserve their elasticity

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.