Goldfish possess genetic traits that allow them to swell up to four pounds—the size of a Chihuahua. Experts say that's why ...

Megalodon may have been up to 80 feet long, but the colossal extinct shark was also probably thinner than scientists ...

Megalodon, the largest shark, was probably slimmer and longer than previously believed, a new study has revealed. Scientists ...

New research reignites debate over the size of this extinct giant, also suggesting it looked unlike a great white ...

A small but fascinating collection of Megalodon teeth exhibit deep bite marks from other Megalodons, raising questions about ...