Simple machines
A gear
A wheel with jagged edges like teeth is typically found on a gear or sprocket in a machinery system. Gears and sprockets with teeth are used to transmit motion and power between components by engaging with other gears or chains. They are commonly used in various mechanical systems to control speed, torque, and direction of rotation.
no swans do not have teeth. i have a picture with a swans mouth open trying to bite and it clearly shows they have jagged edges on the beak that look like teeth.
While a horses teeth are fairly long the surface is relatively smooth as a general rule. However a horses teeth can become jagged from uneven wear from chewing.
No some have jagged teeth to eat the person who asked this question
Gears are wheels with teeth that fit together.
No, it doesn't even have teeth. A blue tongue skink has jagged bones in its mouth but it's not teeth. All lizards have teeth, even though you may not see them, they're there, and they're not jagged bones.
A creature known for its jagged teeth is the piranha, a freshwater fish found in South American rivers. Piranhas have sharp, triangular teeth that are well-adapted for their carnivorous diet. Their formidable bite and aggressive behavior have contributed to their fearsome reputation. Other examples include various species of sharks, which also possess jagged teeth designed for tearing flesh.
serratus anterior
Jagged, Sharp, and Flesh rending.
rocks like jagged teeth