Gars are the ultimate living fossils, having changed at an incredibly ... This leisurely rate of change means these prehistoric fish have the slowest rate of molecular evolution among all jawed ...

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Investigating this theory, the researchers used X-ray diffraction to determine the size of the crystals in the fish tooth enamel. They then took fresh teeth from black carp (Mylopharyngodon piceus) ...

[4-7cm] and armed with razor sharp teeth like a Piranha, Cornuboniscus Budensis probably fed on little crabs using its needle-like teeth to pierce the crabs' shells. Bude's fossil fish is found ...

The ratios of strontium isotopes in fossil shark teeth can be used to better understand how coastal environments evolved in ancient times, according to our newly published work. Our study was one ...

Instead, the captured fish were swallowed ... including sharks with razor-sharp teeth and the giant mosasaur Tylosaurus. One famous Tylosaurus fossil contains the remains of a juvenile ...