Hollow bones and air pockets inside their bodies make ducks lighter than water. Oily feathers keep them waterproof, so their bodies don’t become wet and heavy. This is why ducks always bob up to the surface and never sink.
Answers
Pramod Lohiya
Hollow bones and air pockets inside their bodies make ducks lighter than water. Oily feathers keep them waterproof, so their bodies don’t become wet and heavy. This is why ducks always bob up to the surface and never sink.