how many species were present in the world now???
Answers
After compiling and analyzing a database of DNA sequences from 5 million microbe species from 35,000 sites around the world, researchers concluded that there are a staggering 1 trillion species on Earth. That's more species than the estimated number of stars in the Milky Way galaxy.
In 2020, it's 15 million different species
Summary: It is estimated that 15 million different species live on our planet, but only 2 million of them are currently known to science.
Answer:
In other related studies, around 1.9 million extant species are believed to have been described currently, but some scientists believe 20% are synonyms, reducing the total valid described species to 1.5 million. In 2013, a study published in Science estimated there to be 5 ± 3 million extant species on Earth