cheetahs of the deep sea: deep foraging sprints in short-finned pilot whales off tenerife (canary islands).1. empirical testing of optimal foraging models for breath-hold divers has been difficult. here we report data from sound and movement recording dtags placed on 23 short-finned pilot whales off tenerife to study the foraging strategies used to catch deep-water prey. 2. day and night foraging dives had a maximum depth and duration of 1018 m and 21 min. vocal behaviour during dives was consistent with biosonar-based foraging, with long series of echolocation clicks interspersed with buzzes. simila ...200818444999
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