Complex sentence: A tracking study off Palmyra Atoll in the central Pacific has found that the blacktip reef shark has a home range of around, among the smallest of any shark; the size and location of the range does not change with time of day.
Split into simpler sentences: A tracking study off Palmyra Atoll in the central Pacific has found that the blacktip reef shark has a home range of around, among the smallest of any shark species. The size and location of the range does not change with time of day.