As fanciful as it sounds, imagine an Aadhaar card-type unique identification system for elephants.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/wild-elephants-karnataka-get-unique-identification-code
[2] http://admin.indiaenvironmentportal.org.in/category/author/mohit-m-rao
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-new-delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/karnataka
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/elephant
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nagarahole-np
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bandipur-np
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cauvery-sa
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mammals
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wildlife