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.
The wandering albatross (Diomedea exulans) has the largest wingspan of any living bird. As a result, it is an expert glider and it is capable of remaining in the air without beating its wings for several hours at a time. The largest known specimen was an extremely old male with and 11 ft. 11 in. wingspan.