The study is published in the journal Science. The chart shows the relative ups and downs in species counts, telling ...

In recent years, about 40–50 per year. This chart is generated from my database and shows the number of new living mammal species described by year. By my count, there are currently 6602 ...

In the paper, researchers map the last 3.5 billion years of life on Earth, adding up roughly 2.3 million named species from 500 previously published life trees.