• Central heating
  Mammals are warm-blooded. This means that the temperature inside ...

• Hair history
  Mammals are the only animals with true hair. Hairs are dead cords of ...

• Backbones
  Mammals are vertebrates which means that they all have backbones. ...

• Care for the young
  All mammals look after their young and feed them on milk. They are ...

• Earflaps
  Mammals are the only animals with flaps around their ears. These ...

• Poison
  Only two types of mammal are poisonous. Some shrews have a slightly ...

• Miracle mould
  Penicillin and other antibiotic drugs are widely used to treat ...

• DID YOU KNOW?
  An American dentist, Horace Wells, used the first anaesthetics in ...

• Saved from smallpox
  Despite being discovered in 1796, Jenner's smallpox vaccine did not ...

• Plant painkiller
  Aspirin is one of the most commonly taken medicines of all. It ...