But now the amphibian, described by one researcher as a "living fossil", is facing severe threats from factors including climate change and pollution. :: This Earth The frog can grow over to 11 inches ...

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 ...

Symbiosis is the long-term relationship between two different species that can sometimes be beneficial to both parties. These ...

A deadly fungus has already wiped out 90 species and threatens 500 more but Anthony Waddle is hoping gene replacement could be their salvation Standing ankle-deep in water between two bare cottonwood ...