The cartilaginous fishes or Chondrichthyes (sharks and rays) grow new teeth on the inner face of the jaw; these gradually move up to the jaw edge, row upon row, and push out the old worn teeth.

A newly discovered fish fossil is the earliest known creature with what might be recognized as a face. The finding provides a link between two groups of fishes previously thought to be unrelated ...

Move over, dinosaurs: It's time for some of our favorite non-dino fossil stories of 2023 to shine. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

Virginia Tech. (2025, May 7). Triassic fossil reveals nature's best jaw for hunting fast fish. ScienceDaily. Retrieved June 11, 2025 from www.sciencedaily.com / releases / 2025 / 05 / 250507125952.htm ...