Out of the 122 lots, the main event is NWA 16788, a Martian meteorite that is the largest piece of Mars ever found on Earth.

Richard Whittaker It’s once again Shark Week, and creative kiddos who love sharks are in for a treat at this crafternoon.

As Jaws celebrates its 50th anniversary, Science News explores the vast range of shark sizes, from megaladon to the dwarf lanternshark.

Otodus megalodon was the largest predatory fish in Earth's history. Measuring up to 24 meters, it was longer than a truck with a trailer and weighed almost twice as much. Embedded in its jaws were ...

The Megalodon, officially called Otodus megalodon, is mostly known from its fossilized teeth and vertebrae. Unlike complete skeletons of dinosaurs, no full Megalodon skeleton has ever been found.

Megalodon, like other cartilaginous fishes, had a largely unmineralized skeleton, making fossilized teeth common discoveries. The existing fossil record includes teeth and parts of giant shark ...

As a shark, megalodon is part of the family of cartilaginous fishes. “They have a very poorly mineralized skeleton. There are no true bones that make the skeleton hard,” Shimada said. “On the other ...

As a shark, megalodon is part of the family of cartilaginous fishes. “They have a very poorly mineralized skeleton. There are no true bones that make the skeleton hard,” Shimada said.

As a shark, megalodon is part of the family of cartilaginous fishes. “They have a very poorly mineralized skeleton. There are no true bones that make the skeleton hard,” Shimada said.

Megalodon may have been up to 80 feet long, but the colossal extinct shark was also probably thinner than scientists previously thought, according to a new study.