4,500
2
i do not know
their are about 100
( 1,250,000 ) have been identified
There are 33 known species of seals out there that have been identified.
It is impossible to quantify an unknown factor.
250,000
Over 1.5 million species have been identified and described by scientists, but it is estimated that there could be anywhere from 5 million to over 100 million total species on Earth, with many still waiting to be discovered and classified. Each year, new species are being discovered in various ecosystems around the world.
250,000 Different Species
There are many different species of birds globally, about 10,000 species. The greatest concentration in South America, where 1879 species have been identified.
About forty percent of mammal species are rodents. Since there are about 5,400 mammal species, there are over 2,000 species of rodents.
Approximately 300,000-400,000 different angiosperm species have been discovered and described so far. However, scientists estimate that there may be as many as 250,000 more angiosperm species yet to be identified.