a Javan rhinoceros

a seed / a pit or stone in a fruit / a gamete (reproductive cell such as a spermatozoan or egg) / a lineage, bloodline / an origin, cause / the materials or ingredients from which something is made

to go extinct; to be annihilated; to be eliminated

extinction; annihilation; elimination

misgivings, unease, apprehension

have misgivings, be apprehensive, fear, be concerned, feel uneasy

valuable, worthful, precious

to treasure, to cherish

preciousness; being valuable

existence / being; entity