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

The ESA currently protects approximately 1,700 domestic and 700 foreign species. The chart below includes all animal species currently listed under the ESA. Please see the key below for an explanation ...

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 ...

Their goal is to piece together the first-ever phylogenic (genealogical) tree of all 6,300 known dragonfly species and their ancestors. Funded by the National Science Foundation, the tree will enable ...

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.