Inside JEB i WHALE LUNGES

Returning briefly to the surface for great lungfuls of air, whales’ lifestyles had been a complete mystery until a small group of pioneers from various global institutions – including Malene Simon, Mark Johnson and Peter Madsen – began attaching datalogging tags to these enigmatic creatures. Knowing that Jeremy Goldbogen and colleagues had successful tagged blue, fin and humpback whales to reveal how they lunge through giant shoals of krill, Simon and her colleagues headed off to Greenland where they tagged five humpback whales to discover how the animals capture and consume their prey: krill and agile capelin. Attaching individual tags behind the dorsal fin on three of the whales – to record their stroke patterns – and nearer the head on the remaining whales – to better measure head movements – the team successfully recorded depth, acceleration and magnetic orientation data from 479 dives to find out more about the animals’ lunge tactics (p. 3786).