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Help Scientists! Tell Us What You Know About Extinction

How Much Do You Know About Extinction?

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Approximately, how many vertebrate species are currently going extinct per year on Earth?
  • More than 10,000
    19%
     
  • 1,000 - 10,000
    37%
     
  • 100 - 999
    24%
     
  • 10 - 99
    15%
     
  • Fewer than 10
    3%
     
3132 responses
Approximately, what is the smallest population size for a vertebrate species that is genetically sustainable?
  • More than 5,000
    19%
     
  • 1,000 - 4,999
    28%
     
  • 100 - 999
    28%
     
  • 10 - 99
    15%
     
  • Fewer than 10
    7%
     
3132 responses
Would you describe yourself as:
  • An amateur naturalist
    42%
     
  • A professional or academic biologist
    1%
     
  • Biology or related student
    4%
     
  • A conservation professional
    1%
     
  • Philanthropist
    3%
     
  • Other
    45%
     
3132 responses

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