Complex sentence: A major conservation concern for beaked whales (family Ziphiidae) is they appear to be vulnerable to modern sonar operations, which arises from recent strandings that temporally and physically coincide with naval sonar exercises.
Split into simpler sentences: A major conservation concern for beaked whales (family Ziphiidae) is that they appear to be vulnerable to modern sonar operations. This concern arises out of recent strandings that temporally and physically coincide with naval sonar exercises.