Number Of Different Animals In The World
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29 rows How many species known to currently exist in the world.
Number of different animals in the world. This is a very good question but the truth is its very hard to know or even estimate. After animal kingdom animal species usually fall into one of seven different phylum or phyla. The US only counts mammals although mice and rats are not included.
But those figures are dwarfed by the number of animals we eat. Wild marine vertebrates number at least 10 13 and perhaps a few orders of magnitude higher. Terrestrial and marine arthropods each probably number at least 10 18.
Trying to estimate the numbers of animals used in research worldwide is difficult because many countries do not provide comprehensive statistics. Take this into consideration. According to Gatesnotes 725000 people are killed by devastating diseases carried by mosquitos annually.
Porifera Marine animals more commonly known as sponges and found in every ocean on earth. There are also many different species of birds and frogs living in the rainforest. This provides an official figure of 820812 animals not procedures as in.
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. Having reached some 7 billion in 2011 we outnumber our fellow furries by a wide margin. Some scientists estimate that there are about 30 million species of invertebrates living in the worlds rainforests and one survey conducted in the Amazon found 50 different species of ants living on a single tree.
30 rows No one knows for sure how many species of animals exist on Earth. Species of mammals are less common but there. Cnidaria Mostly marine animals that include over 11000 species.
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