Frogs can be found in the fossil record as early as the Late Triassic (around 217–213 million years ago)—but tadpoles had previously only been known to go back to the Cretaceous Period ...

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.

Bullfrog tadpoles mainly eat algae and insects, so I knew I had a grace period to catch Chubby before he turned into the Joey Chestnut of fish-eating. My pond is small, ...

Except for 38 frogs that were rescued in 2024, all of the other southern mountain yellow-legged tadpoles and frogs were bred at the zoo.

In my hand is a bullfrog tadpole. I dipped it from a pond May 15. It probably is a bit over two years old. A female American bullfrog can lay about 20,000 eggs in early spring. Southeast Missouri ...

Marsupial frogs, “vomit frogs” and foam-spewers reveal the glorious range of frog baby-making techniques. ... There’s No Wrong Way to Make a Tadpole (or Froglet) Marsupial frogs, ...

The Notobatrachus tadpole, however, was the same length as one of the adult frogs. “That feature is really, really hard to find in nature today,” Dr. Chuliver said.