Rick Koval and I didn’t catch an adult bullfrog for our herp series this summer, but what we did find was more than suitable to cross the species off the list. It was a bullfrog tadpole, and it was ...

Some tadpoles can respond to their environment even before birth, hatching with stronger jaws if they sense prey in the water while still embryos. The Mexican spadefoot toad (Spea multiplicata) is a ...

An American bullfrog tadpole, left, is bigger than the young native northwestern pond turtle in this photo. Bullfrogs often prey on native turtles in the western U.S., contributing to their decline.

African bullfrogs approach parenting a little differently from many other species. It is the males who take on the heavy lifting when it comes to childcare duties. The dad in this extraordinary ...

A bullfrog tadpole with legs from a farm pond downstream from AltEn is collected Nov. 2 for a University of Nebraska-Lincoln research study. University of Nebraska-Lincoln doctoral student Shabani ...

Commentator Julie Zickefoose thought a bullfrog might be a pleasant and decorative addition to her backyard water garden. Julie Zickefoose is a painter and writer who lives on Indigo Hill, a nature ...