I was wondering what the highest life was on Earth.
Bacteria and fungal spores have been found up to 41 km. (Also I learned a new word: aeroplankton.)
https://academic.oup.com/femsle/article/218/1/161/532689?
Birds
In terms of animals, the record might be held by Rüppell’s vulture known to fly over 11300 metres in altitude. Although that’s well and truly high enough to fly over Everest, it doesn’t do that because its range is all African.
The second and third highest flying birds are the Eurasian Crane and the Bar-headed Goose, both of which actually do fly over the highest Himalayan peaks as they migrate between north and south.
The Alpine Chough (Pyrrhocorax graculus) is described as the highest nesting bird, building nests up to 6400 metres.
Mammals
The highest living mammal is the Phyllotis xanthopygus, yellow-rumped leaf-eared mouse, which was found at 6739 meters.
Watch this video with people very excited about the mouse.
https://www.youtube.com/watch?v=bypnzuF9f4w&t=11s
This discovery beat the previous record for a mammal, which was 6130 metres (Large-eared Pika).
Amphibians
The highest amphibian is either Scutiger boulengeri (Xizang alpine toad) found in the Himalayas, or Pleurodema marmoratum found in the Andes. Both top out around 5300 metres.
Reptiles
Liolaemus tacnae is an Andean lizard which was found at 5400 metres. Most elevated snake is Gloydius himalayanus, Himalayan pit viper, seen up to 4900 metres. Must bea tough life for the cold-blooded up that way, be interested to know how they don’t just die.
Arthropods
Surprisingly, to me at least, there are no really high flying insects, with none observed beyond 6000 metres. The highest insects are some small flies, springtails and butterflies. However, their fragmentary remains do get blown further uphill, where they are eaten by Euophrys omnisuperstes, the Himalayan jumping spider, which resides up to 6700 metres.
Plants
A moss of the genus Bryum has been found at 6480 m. The highest flowering plant is probably Arenaria bryophylla, found up to 6200 m.
Surprising to me is that there are no lichens found this high. I kind of considered them hardy beasts. The lichen record seems to be 5000 m (Psora altotibetica).



