A whale shark feeding at the water’s surface Reinhard Dirscherl/Alamy
Whale sharks are the world’s largest living fish, measuring up to 18 metres long, but somehow they can suspend themselves in an upright position despite having a body density that is greater than that of seawater. A study of captive whale sharks suggests this may be due to air they take in as they feed at the water’s surface.
Å®ÉúСÊÓƵs have previously observed whale sharks (Rhincodon typus) feeding vertically in the wild. Although they often use slow fin movements to hold themselves in place while feeding on plankton…
