The keratin sheath added more than 40% to the claw’s length. “These were big, sharp and nasty claws,” said paleontologist and study co-author Darla Zelenitsky of the University of Calgary in ...

Fossils unearthed during construction of a water pipeline in the Gobi Desert of Mongolia have revealed one of the oddest ...

Paleontologists have discovered the largest fully preserved dinosaur claw in Mongolia’s Gobi Desert, belonging to a new ...

The keratin sheath added more than 40% to the claw's length. "These were big, sharp and nasty claws," said paleontologist and study co-author Darla Zelenitsky of the University of Calgary in Canada.

The keratin sheath added more than 40 per cent to the claw’s length. “These were big, sharp and nasty claws,” said paleontologist and study co-author Darla Zelenitsky of the University of ...