genus lamna


Mackerel sharks (Lamna) are a genus of shark.

Endothermic ability

The two species of this genus can keep their blood temperature higher above that of the water surrounding them than other cartilaginous fish, with temperature differences recorded up to 15.6 °C. Among fish, blood temperature regulation only occurs in large, fast species – bluefin tuna and swordfish are bony fish with similar abilities.


The genus contains two species:


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