Number Of Different Animals In The World
Having reached some 7 billion in 2011 we outnumber our fellow furries by a wide margin.
Number of different animals in the world. Wild marine vertebrates number at least 10 13 and perhaps a few orders of magnitude higher. 29 rows How many species known to currently exist in the world. That first time you see a lion hunting alongside its pride or a whale gliding through the ocean you cant help but be giddy with childlike excitement.
According to Gatesnotes 725000 people are killed by devastating diseases carried by mosquitos annually. The combined total of chickens 19 billion cows 15 billion sheep 1 billion and pigs 1 billion living at any one time is three times higher than the number of people according to the Economist. How many species are there in the world.
After animal kingdom animal species usually fall into one of seven different phylum or phyla. The only species that may come close to or exceed us in numbers are the brown rat Rattus norvegicus and house mouse Mus domesticus whose evolutionary histories and distribution are closely tied to our own. Terrestrial and marine arthropods each probably number at least 10 18.
Take this into consideration. This is a very good question but the truth is its very hard to know or even estimate. Collectively wild land vertebrates probably number between 10 11 and 10 14.
There are approximately 12 million known species of animals but scientists estimate there are closer to 87 million species on earth. The US only counts mammals although mice and rats are not included. A Complete List of National Animals from Around the World.
This provides an official figure of 820812 animals not procedures as in. Cartilaginous fish which includes sharks rays and skates. Trying to estimate the numbers of animals used in research worldwide is difficult because many countries do not provide comprehensive statistics.