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2. Antarctic toothfish - Wikipedia

   en.wikipedia.org/wiki/Antarctic_toothfish

   The bycatch of other fish can also be significant, with the ratio of toothfish caught ranging from 4.5% to 17.9% and averaging 9.3% from the 1999/2000 fishing season to 2013/14 in CCAMLR Subarea 88.1 when the toothfish catch first exceeded 50 tonnes and from 2.3% to 24.5% averaging 12.4% in CCAMLR Subarea 88.2 up to the latest publicly ...

3. Cladoselache - Wikipedia

   en.wikipedia.org/wiki/Cladoselache

   Cladoselache is an extinct genus of shark-like chondrichthyan (cartilaginous fish) from the Late Devonian of North America.It was similar in body shape to modern lamnid sharks (such as mako sharks and the great white shark), but was not closely related to lamnids or to any other modern shark.

4. Fish jaw - Wikipedia

   en.wikipedia.org/wiki/Fish_jaw

   Some fish like carp and zebrafish have pharyngeal teeth only. [30] [31] Sea horses, pipefish, and adult sturgeon have no teeth of any type. In fish, Hox gene expression regulates mechanisms for tooth initiation. [32] [33] While both sharks and bony fish continuously produce new teeth throughout their lives, they do so via different mechanism.

5. Cladodont - Wikipedia

   en.wikipedia.org/wiki/Cladodont

   This is a typical Cladodont tooth, of a shark called Glikmanius. Cladodont (from Latin cladus, meaning branch and Greek Odon, meaning tooth) is the term for a common category of early Devonian shark known primarily for its "multi-cusped" tooth consisting of one long blade surrounded by many short, fork-like tines, designed to catch food that was swallowed whole, instead of being used to saw ...

6. Shark monitoring system pings California lifeguards, but lack ...

   www.aol.com/news/shark-monitoring-system-pings...

   The Shark Lab tracks more than 200 sharks along California's coasts through a program set up in 2018 with more than $3 million in state funding. Shark monitoring system pings California lifeguards ...

7. Animal tooth development - Wikipedia

   en.wikipedia.org/wiki/Animal_tooth_development

   In fish, Hox gene expression regulates mechanisms for tooth initiation. [1] [2] However, sharks continuously produce new teeth throughout their lives [3] [4] [5] via a drastically different mechanism. Shark teeth form from modified scales near the tongue and move outward on the jaw in rows until they are eventually dislodged. [6]