Piranhas belong to a family of bony fish characterized by highly developed dentition. They’re cousins to the pacu fish, which has dentition eerily similar to human teeth. Unlike pacu teeth, which are ...

The wear of coal shearer drum teeth is a significant issue in industrial production. This paper proposes a deep learning method for drum teeth wear detection based on improved YOLOv8. First, the ...

A university student on a fossil-hunting field trip in Dorset made a stunning discovery: a 145-million-year-old jawbone belonging to a previously unknown mammal species with razor-like teeth. With the ...

The conodont Wurmiella excavata was said to have had razor-sharp structures that processed prey from left to right, rather ...

There’s no shortage of unforgettable characters in the world of video games. Whether or not they’re the hero, the villain or ...

They’re 39 feet long and 13 feet tall, with thick, powerful bodies, massive claws, razor-sharp teeth and 6-feet-high sail fins.

Oregon Zoo has welcomed 25 rare Pacific lamprey – a 400-million-year-old species native to the Pacific Northwest. The effort is part of a tribal-led initiative to restore lamprey populations above ...

Scientists in Japan discovered a new species, Synodus autumnus, a red-eyed lizardfish with sharp teeth, autumnal hues, and a habitat spanning the Pacific Ocean.

Their mouths are full of purpose-built tools: six rows of saw-like cutters on the bottom jaw, and smaller, razor-sharp teeth on top that can bust through whale skin. Most sightings happen after dark.

The reality, however, is more nuanced. Red-bellied piranhas (Pygocentrus nattereri), the most well-known species, do possess impressive dental equipment – triangular, razor-sharp teeth that interlock ...