Fun KidsMuscles
Muscles do a number of really important jobs in our bodies. But Professor Hallux thinks he can invent an improved set of muscles. But will they do all the jobs that muscles have to do? And what are those jobs anyway?
Muscles do a number of really important jobs in our bodies. But Professor Hallux thinks he can invent an improved set of muscles. But will they do all the jobs that muscles have to do? And what are those jobs anyway?
