Oxygen is necessary to sustain most terrestrial life. Oxygen is used in cellular respiration and many major classes of organic molecules in living organisms contain oxygen, such as proteins, nucleic acids, carbohydrates, and fats, as do the major constituent inorganic compounds of animal shells, teeth, and bone.
From wingtip to wingtip, P. sandersi measured at least 6.4 meters. The wandering albatross, the worldâs largest living bird, has a wingspan of 3.5 meters, and the giant, extinct South American condor, Argentavis magnificens, was right around 6 meters.
Eagles with the largest wingspan. 1  White-tailed eagle (Haliaeetus albicilla) â 218.5 cm (7ft 2in) / max: 253 cm (8.3 ft) 2  Stellerâs sea eagle (Haliaeetus pelagicus) â 212.5 cm (7 ft) / max: 250 cm (8ft 2in) 3  Wedge-tailed eagle (Aquila audax) â 210 cm (6ft 11in) / max: 284 cm (9ft 4in)