When you purchase through links on our site , we may earn an affiliate commissioning . Here ’s how it works .
We do n’t sleep with precisely when thefirst creature on Earthappeared , but it ’s thought to be around 700 million years ago . Around 541 million geezerhood ago , at the beginning of the Cambrian period , hundreds of thousands of new specie appeared within a distich of about 20 million yr — an consequence known as theCambrian blowup . Since then , meg — or possibly one million million — of species have come and gone . Scientists estimate that99.9 % of all creatures that ever lived have gone nonextant .
researcher thinkthere are now around 7.7 millionanimal species exist on Earth , with thousands more name every year . But specie are also run nonextant at an alarming pace , with many likely go away before they ’ve even been formally realize . Many scientist even say we ’re move into asixth mass extinction .
How much do you know about the animals presently living on our planet ? Take our quiz to find out . If you need a touch , reach the yellow button . Good circumstances !
Morescience quizzes
— Mammoth quiz : try your noesis of the ice age beasts
— Evolution quiz : Can you naturally pick out the correct answers ?
— Orca quiz : Will you dip or drown ?
— Shark quiz : How much do you know about these iconic ocean star ?
— Crocodile quiz : Test your cognition on the prehistoric predators
You must confirm your public display name before commenting
Please logout and then login again , you will then be prompted to enter your display name .
