From hand-sized lantern sharks that glow in the deep sea to bus-sized whale sharks gliding through tropical waters, sharks come in all shapes and sizes. Despite these differences, they all face the ...

National Oceanic and Atmospheric Administration (NOAA) researchers have unpicked some of the mysteries surrounding the biology and life cycle of the rare and elusive sleeper shark. Pacific sleeper ...

New research into the ancient megalodon shark species has revealed the most accurate estimates of its size to date. The creatures could grow to 59 feet in length, according to researchers. The sharks ...

The ancestor of all hammerhead sharks probably appeared abruptly in Earth's oceans about 20 million years ago and was as big as some contemporary hammerheads, according to a new study led by the ...

A newly described fossil from northern Australia reveals an 8 meter mega-shark that hunted in the age of dinosaurs, long before the famous Megalodon ever evolved. By pushing the origin of giant ...