5 Questions
What is the estimated number of Earth's current species?
10 million to 14 million
How many species have been documented out of the estimated Earth's current species?
1.2 million
What method was used to count the emperor penguin population in 2012?
By satellite
What is the estimated number of marine microbial species alone?
20,000,000
When did scientists report the estimated number of 1 trillion species on Earth?
May 2016
Test your knowledge about the population of various species in the animal kingdom. From the piping plover to the emperor penguin, explore estimates and counting methods used in population ecology and biogeography.
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