Despite a widespread range, surprisingly little is know about the biology and behaviour of this enigmatic shark. Slow and sluggish compared to the vigorous shortfin mako, the solitary longfin mako may be observed cruising slowly near the ocean’s surface (3) (6). However, when hunting it is capable of short bursts of rapid movement, primarily preying upon schools of small bony fish, but also taking squid and occasionally larger fish, such as swordfish. These high levels of activity are maintained by the possession of a specialised heat exchange circulatory system that enables the body to be warmer than the surrounding water (3).
An ovoviviparous shark, developing offspring consume unfertilised eggs in the mother’s uterus, resulting in a litter of two to eight well developed live young, measuring between 90 and 95 centimetres at birth (3). It is possible that pregnant females move towards coastal nursing grounds to give birth in shallow waters that offer the developing young protection from predators (1).