Sawfish
Sawfish are mostly found in relatively shallow waters, typically at depths less than , and occasionally less than . Young prefer very shallow places and are often found in water only deep. Sawfish can occur offshore, but are rare deeper than . An unidentified sawfish (either a largetooth or smalltooth sawfish) was captured off Central America at a depth in excess of .
Longcomb sawfish
Little is known of its life cycle, but it is ovoviviparous and the young are long at birth. It is often said that there are about 12 young in each litter, but the basis for this number is unclear (in other sawfish species litter size ranges from 1 to 20). The females give birth in inshore areas, and the young stay near the coast and in estuaries in the first part of their lives. Sexual maturity is reached at an age of about 9 years, and a length of . The maximum age is unknown, but it might be in excess of 50 years, and an individual caught as a juvenile lived for 35 years at an aquarium.