Editor’s note: Every year, hundreds of undergraduates at the University of Delaware pursue research under the guidance of a faculty mentor. Such experiences provided by UD — a nationally recognized ...

Archaeologists have discovered two knives that were fashioned from shark teeth about 7,000 years ago. An international team of researchers uncovered the unique artifacts during excavations on the ...

Excavations on the Indonesian island of Sulawesi have uncovered two unique and deadly artifacts dating back some 7,000 years — tiger shark teeth that were used as blades. These finds, reported in the ...

(CNN) — The largest apex predator in the tropical seas, tiger sharks are notoriously fierce. They can grow to more than six meters (20 feet), have sharp serrated teeth and are second only to great ...