For example, transition to an aquatic life leads to selection on such attributes as the ability to move through water, to remain underwater for long periods, and to dive to considerable depths [1].
Many shearwaters are intermediate between the two, having longer wings than typical wing-propelled divers but heavier wing loadings than the other surface-feeding procellariids, leaving them capable of diving to considerable depths while still being efficient long-distance travellers.
10 30 a.m. 5. Sunken Treasures To honor the town's considerable naval presence and history, dive into the Man in the Sea Museum (17314 Panama City Beach Parkway; maninthesea.org; $5).
Diving behaviour showed considerable variability among days.
Free-ranging diving seabirds can spend considerable amounts of time in cold water, where they may perform very deep and very long dives.
It has been documented in this and other studies that considerable time at the surface, punctuated with deep dives, is a typical traveling behavior pattern [13] [15].
Fortunately I had learnt to dive 7 years previously, so had a considerable amount of SCUBA experience.
His first book of poems, The Garden Is Political, was published to considerable acclaim in 1942; his seventh and last, Skin Diving in the Virgins and Other Poems, was published in 1970.
