After almost 5 years, Made in Abyss is getting a new series of film adaptations, beginning with Awakening Mystery. Find out more here.

A newly identified ancient shark species, Macadens olsoni, has been at Mammoth Cave National Park. The National Park Service says Macadens olsoni likely measured less than a foot long and featured ...

The fossilized tooth of a newly discovered ancient shark species - dating back about 340 million years - has been unearthed in the world's largest cave system, officials said.

Mammoth Cave National Park continues to add new species of ancient sharks to the paleontological record.

A new species of ancient shark, named Macadens olsoni, was found in Mammoth Cave, Kentucky, known for its curved teeth meant for crushing sea creatures.

A new species of ancient shark, named Macadens olsoni, was found in Mammoth Cave, Kentucky, known for its curved teeth meant for crushing sea creatures.

A new species of ancient shark has been discovered at Mammoth Cave National Park in Kentucky, officials said. Named Macadens olsoni, the fossils were found in the Ste. Genevieve Formation, dating ...

(NEW YORK) -- A new species of ancient shark has been discovered at Mammoth Cave National Park in Kentucky, officials said.