In Metal Gear Solid V: The Phantom Pain, there are variety of wild animals you will notice during your playthrough but, did you know that if you collect one of each rare animal species and send them to Mother Base then you will unlock the "Conservation" Trophy/achievement. Here is how you locate and extract the Wild Animals in Metal Gear Solid V: The Phantom Pain.
The Animals which you extract from the wild will be sent to Mother Base and kept them under Zoo Platform. Also, if you need to hunt these species you'll need different items/weapons to capture and extract them. The Zoologist Specialist can provide you with these items. If you still haven't unlocked the Zoologist you'll find it Here.
Grey Wolf:
The Grey Wolf are very easy to find and extract. You'll found a couple of them near the road, halfway between Lamar Khaate Palace and Da Shago Kallai.
Wild Donkey:
The Wild Doney can be found in both the region, Afghanistan and Angola. This one will be wandering the road from Qarya Sakhra Ee to Da Smasei Lamar.
Himalayan Brown Bear:
This Brown Bear can always be found at the mountain pass where the roads connect, Wakh Sind Barracks to Qarya Sakhra Ee in the south, and from Aabe Shifap Ruins to Serak Power Plant in the north. You'll also have a chance to extract him during the Side Op #48 'Capture The Legendary Brown Bear' where it will take more than 6 to 8 shots to take him down(to sleep).
Grant's Zebra:
The Gran Zebra will be found in its field which is just east of Nova Braga Airport. Don't try any fancy tricks, he can be easily extracted.
Nubian Goat:
You can find one near outpost #6 in Angola, on the road between Mfinda Oilfields and Bwala ga Masa. This Goat is easily noticeable.
Okapi:
You can count Okapi as a living fossil as these species are so rare they are impossible to find. The one which we noticed was wandering around in northern plains, between Mfinda Oilfield and Kiziba Camp(Angola). Although these are very rare species but, once you found it it is very easy to extract, they don't even run even you are nearby.