Loss of biodiversity is one of the critical challenges faced both by our planet and our species, as many plants and animals have been eradicated from human-dominated landscapes or remain in small ...

A new interactive map of the U.S. shows which states are growing in population the fastest and which are shrinking the quickest. The data, which draws on statistics from the State Data Center, a U.S.

Power analyses and sample size calculations are important parts of many research projects. Often, before data are even collected, it is necessary to calculate and justify the required sample size for ...