One of a blacktip reef sharks’ top teeth as seen under a scanning electron microscope. “It’s not only shells, corals, and mussels that are impacted by ocean acidification,” Maximilian Baum, lead study ...

Scientists studied how the sea creatures, also known as chimaeras or ghost sharks, ended up with one of evolution’s most bizarre appendages. By Jack Tamisiea Life in the ocean’s dark depths can be ...

Sharks have long been known for their razor-sharp teeth, weapons that make them some of the ocean’s most effective hunters. But new research suggests that these powerful tools may not be as invincible ...