<P> The evolutionary history of scorpions goes back to the Silurian period 430 million years ago . They have adapted to a wide range of environmental conditions and can now be found on all continents except Antarctica . Scorpions number about 1750 described species , with 13 extant ( living ) families recognised to date . The taxonomy has undergone changes and is likely to change further , as genetic studies are bringing forth new information . </P>
<P> The evolutionary history of scorpions goes back to the Silurian period 430 million years ago . They have adapted to a wide range of environmental conditions and can now be found on all continents except Antarctica . Scorpions number about 1750 described species , with 13 extant ( living ) families recognised to date . The taxonomy has undergone changes and is likely to change further , as genetic studies are bringing forth new information . </P>
how many different types of scorpions are there
how many different types of scorpions are there
1750
1750