How many species of animals are they in the world?

Question: How many species of animals are they in the world?
- Keywords:
  animal,
  world
Asked by 829envp47 to William on 12 Nov 2018.
- William answered on 12 Nov 2018:
  
  Scientists have recently estimated that there are approximately 8.7 million species on Earth. They believe that 1-2 million of those species are animals 🙂 There are no exact numbers as it would be very hard to keep track of 🙂

Question: How many species of animals are they in the world?