An extinct marine crustacean-like creature known as Dollocaris ingen was equipped with two large eyes, each about a quarter of its body size. Researchers say this likely gave the pipsqueak an advantage when ambushing its prey.
Newly discovered fossils indicate that giant sharks swam throughout ancient oceans 170 million years earlier than researchers previously thought.
A recent study looked at electric eels' secret power over struggling or hard-to-grip prey.
Giant prehistoric teeth from an extinct species of shark known as Megalodon recently washed up on a beach in North Carolina. Since little is known about this ancient species, the newly discovered teeth may help researchers unlock more clues.
Humans have been found to stray from the tradition food web hierarchy and hunt or fish at rates with which wildlife populations cannot keep up.
For more than 250 million years, four-limbed land animals known as tetrapods have repeatedly conquered the Earth's oceans. Now new research is revealing just how these marine predators successfully evolved amidst this ever-changing environment.