The frog is also threatened by introduced species: Bullfrogs and green frogs compete with Oregon spotted frogs for food, while fish introduced for sport fishing may also compete for prey — or prey on ...

Turns out, frog spit has peculiar physical properties that allow it to transform from a sticky, honey-like substance to a watery form in milliseconds. The point? Food. Frogs use their sticky ...

leopard frogs were widely collected not only for dissection but for the food industry (frog legs) as well. However, massive declines beginning in the early 1970s, particularly in Canada and the ...