More: Do gingko trees really live for hundreds of years? | ECOVIEWS Our largest frog, the iconic American bullfrog, is a ...

The bullfrogs prey on the turtle's young, as well as newts, salamanders, and other smaller frogs— a cold-blooded killer in ...

One of the biggest threats to the species is the introduction of American bullfrogs, which are native to the eastern United ...

according to American Scientist, which described the amphibian as being: … larger in circumference than a can of soda. Its head is around the size of a big adult bullfrog, but is round and blunt ...

The call of American bullfrogs was deafening when scientists from the University of California, Davis, first began ...

which American biologists cannot easily access. Removing non-native species, including bullfrogs, crayfish and sport fish, from big systems like the San Pedro River and the Santa Cruz River also ...

Berthelsdorf first spotted the brilliantly colored American bullfrog on his property in McMinnville last year. Now, he said, the frog is a little bigger. The blue bullfrog is a female, he said ...

More than 16,000 American bullfrogs, larvae and egg masses were removed from Yosemite National Park over a six-year period.

One of the biggest threats to the species is the introduction of American bullfrogs, which are native to the eastern United States but were introduced in the West, where they prey upon small ...