Scientists have identified over 1.7 million species, including:

• 
  
  950,000 species of insects
  
  
• 
  
  19,000   species of fish
  
  
• 
  
  10,500   species of reptiles and amphibians
  
  
• 
  
  9,000     species of birds
  
  
• 
  
  4,000     species of mammals
  
  
• 
  
  270,000  species of plants

All these figures do not include all the molluscs, worms, spiders, fungi, algae, and other micro-organisms!