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 Giant Teratorn is the biggest bird to have lived but that was around 6 million years ago. It was said to have a 23-25ft wingspan and would have looked similar to a Condor. It was discovered in Argentina. The biggest wingspan of any bird can be found on the Wondering Albatross, its around 12ft on the larger birds.