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 largest land bird in North America? Grand Canyon Expeditions December 3, 2014 GCEX Main Leave a Comment Regarded as one of the rarest birds in the world, the California condor (Gymnogyps Californianus) is the largest land bird in North America with a wingspan up to 9 1/2 feet and weighing up to 23 pounds. If you see a condor flying or perched at a safe distance, enjoy this remarkable sight!