constitute 5400 http://www.factmonster.com/ipka/A0934288.html http://www.factmonster.com/ipka/A0934288.html http://www.factmonster.com... http://www.factmonster.com/ipka/A0934288.html Factmonster Factmonster http://www.factmonster.com/ipka/A0934288.html seriously far and beyond Estimated Number of Animal Species http://www.factmonster.com... 5,000 species of mammals http://www.factmonster.com/ipka/A0934288.html http://www.factmonster.com/ipka/A0934288.html there are some 950,000 species of insects, alone http://www.factmonster.com/ipka/A0934288.html http://www.factmonster.com/ipka/A0934288.html http://www.factmonster.com/ipka/A0934288.html http://www.factmonster.com/ipka/A0934288.html 950,000 known species of insects http://www.factmonster.com/ipka/A0934288.html Estimated Number of Animal and Plant Species | FactMonster http://www.factmonster.com/ipka/A0934288.html constitute 5400 http://www.factmonster.com/ipka/A0934288.html http://www.factmonster.com...