Crayfish frog, Lithobates areolatus, a large frog of the central and southern United States, that spends most of its life in the burrows of large crayfishes.© Mike Redmer/Shutterstock.com Crawfish ...

Crawfish frog numbers are on decline due to habitat loss. But scientists in Indiana are working to return species to a historic site. When frogs start disappearing from a place that they've been in ...