WONDER #1900: How Many Animals Are There in the World?

Question 1 of 3

According to recent scientific estimates, how many species are there on Earth?

1. 12
2. 2 million
3. 10 million
4. 8.7 million

Question 2 of 3

Which of the following animals outnumbers human beings on Earth?

1. cow
2. sheep
3. chicken
4. elephant

Question 3 of 3

At least one expert estimates there may be how many total animals on Earth?

1. 10 million
2. 7 billion
3. 80 trillion
4. 20 quintillion

Check your answers online at https://www.wonderopolis.org/wonder/how-many-animals-are-there-in-the-world.