Babirusa, also known as deer pigs, hail from the Indonesian islands of Sulawesi, Togian, Sula, and Buru. This is actually a genus of animals with four different species that have small yet critical differences.
The differences include full-grown sizes, the amount of hair on the body, and the measurements of the skull and teeth. The most noticeable feature of this group of swine is their long, curved tusks. Not only do they develop from the sides of the mouth, like normal teeth, but the tusks from the upper mandible actually pierce the flesh, making them look like horns. Frequently, these tusks will grow so long as to loop back toward the eyes.
The Gerenuk
Hey baby, what's up? This lean beast is called a Gerenuk, and it hails from the Horn of Africa, in the east. It's the sole member of the genus “Litocranius.” Also known as the giraffe gazelle, this mostly-proportional animal got its first description from naturalist Victor Brooke in 1879.
Characterized by its long, slender limbs, and its propensity to stand on its hind legs to reach those tasty, tasty high-up leaves. The species is sexually dimorphic, meaning the males and females look different, like peacocks and peahens. The biggest difference is the horns, which are only present in males. The horns are lyre-shaped and can reach up to eighteen feet in length.
Dugong
Ready to catch them all, but in the real world? This marine mammal is where the designers of Pokemon got the inspiration for the first-gen creature Dewgong. While the real version doesn't have a horn (and can't fire a jet of water hard enough to deal damage), they're still rare creatures.
Like the rest of the animals in its order (“Sirenia”) it has no dorsal fin or hind limbs. It is easily distinguished by its fluked, dolphin-like tail, as well as its unique skull and teeth. The snout turns down sharply, which helps it feed on its favorite benthic seagrass. Unlike manatees, their molar teeth are simple and peg-like.
Lamprey
Well, it's been fun, everybody. We've seen plenty of cute creatures, and then there's this one. Lampreys are horrible, horrible monsters that aren't straight from your nightmares, but they'll be there soon.
They are an ancient lineage of jawless fish of the order “Petromyzontiformes.” The name lamprey comes from the Latin word lampetra, meaning more-or-less “stone licker.” Lampreys include thirty-eight known living species, as well as five extinct versions. Most of the versions are parasitic carnivores — they feed by boring into the flesh of other fish to suck their blood. Yes, it's pretty distasteful. However, fewer than half of the species take this track.
Zebra Duiker
This little guy, found primarily in Liberia (along with the Ivory Coast, Sierra Leone, and occasionally Guinea), is a small antelope. Commonly referred to as a banded duiker or stripped-back duiker, it's thought to be one of the earliest members of the duiker family.
The big physical element of this creature is the black stripes that wrap around the top of its body, which is where the obvious name came from. These duikers are quite small compared to other members of the antelope family, usually only growing to about three feet in length, and weighing less than fifty pounds. Females are typically larger, and most likely to support longer gestation times.