in isolation Vs isolated from
Author's intention : some subspecies named "The woodland sub-species" were not in CONTACT with humans though, their marsh cousins or the tree-dwelling sub-species were in contact with humans more than them.
Now, "isolation from contacts with human" Vs "isolation from humans itself"?
"isolated from" points towards permanent separation of an species with another whereas "in isolation with"states separation of a species from the CONTACTS with the humans.
" Make more efforts "
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