When ducklings swim, their shoulders should be out of the water and their waist should be bent over their knees. When swimming in the water, they should tighten their core strength and use flexion, flexion and torque in a balanced and skillful way to achieve higher swimming efficiency and a more stable swimming state.
Duck is the general name of waterfowl in the subfamily Duckinae, or real duck. Ducks are smaller, with short necks, and some genera have bigger mouths. Legs are behind your body (like swans), so you stumble.
Most real ducks (including several birds mistakenly called geese because of their individual size and body shape) are different from swans and geese, and have the following characteristics: males molt twice a year, females lay more eggs in each nest, and the eggshells are smooth; The legs are covered with overlapping scales; The cry shows some gender differences.
Living habits of ducks
1. Ducks are good at foraging, frolicking and courtship in the water. Duck's tail gland is very developed, which can secrete oil containing fat, lecithin and higher alcohols.
2. When a duck combs its feathers, it will press the tail gland with its beak to squeeze out oil, and then apply it to the feathers of the whole body with its beak, so that the feathers can be moistened and prevented from being soaked by water, which effectively plays the roles of waterproof, moisture-proof and cold-proof.
3. Ducks like water, but they don't like wet environment, because wet environment is not conducive to duck's heat preservation in winter and heat dissipation in summer, and it is easy to get the feathers on duck's abdomen wet.