Are Scalloped Hammerheads more active by day or by night?
Like other sharks, Scalloped Hammerheads are suspected to be more active at night than by day. Visual displays may be limited to daylight hours, when the hammerheads are schooling, but individual’s average swimming speed and feeding intensity are probably significantly greater at night. Unfortunately, observing Scalloped Hammerheads underwater at night is very difficult and remote sensing technology, such as sonic tags, often do not provide sufficient contextual clues to allow researchers to determine what’s really going on.
