Yep, you've found and Achiles heel...
I would think it more important to preserve those we are on the verge of losing...
Mind you, some folks would just say, "Stuff them..."
Most recent believed extinctions include a type of dolphin believed to only exist in the Yellow River and a bat linked to Christmas Island... there is a bird that got down to a handful - literally five birds... the Black Robin... very similar in its habits to the European Robin...
Presently somewhere below 300 presently exist...
Here's a link to those already gone...
http://www.petermaas.nl/extinct/lists/mostrecent.htmOne of Roshina's favourite animals is the Malayan Tapir - there are more Giant Pandas than there are Malayan Tapirs - same colours and size, just not as photogenic to say the least - part of the Equine genus... the babies look kind of cute which is why she likes them so much... we've had first-hand experience with these beasties and have "adopted" one in the past...
There are days when I start to wonder how much better off this planet would be without us...