If the bones were solid they would be much heavier and the animals would not be able to move as quickly.
yes EDIT: They are not hollow while they are alive, they are filled with 'living bone' which means that the bone will dry up and decay (like tissue or cartilage) leaving a hollow horn after the animals death.
A full bone is definitely heavier than a hollow bone, hope this helps.
bone marrow..
If you mean "hollow" of a bone... it would be marrow.
Leg bones in some animals, like birds, are hollow to reduce weight without sacrificing strength. This adaptation allows for easier flight or agile movement. The hollow structure also allows for the storage of calcium and other minerals needed for bone strength.
No, it is found in the hollow cavity inside the bone.
The hollow cylinder part of the long bone is called the medullary cavity. It is filled with bone marrow and helps reduce the weight of the bone while providing support and flexibility.
No. Yellow bone marrow is found in the hollow cavity inside the bone.
Hollow bones are hollow bones. Birds have hollow bones to make them lighter for flight and to help keep their body temperature down.
marrow
epiphysis
Fossa