The Amur leopard is one of the rarest and most endangered large cats on the planet, with only about 70 mature individuals remaining. It's also among the most exquisite, with a coat with a distinctive pattern of black flecks and splotches that sets it apart from other leopards.
The Sumatran rhino is one of the rhino species that is most threatened worldwide, along with the Javan rhino. It's the smallest as well. Fewer than 100 of this species remain in Sumatra, Borneo, and the Malay Peninsula, but their tenacity isn't the only thing that makes them so remarkable.
The stunning Hainan gibbon is the rarest ape on the globe, with only 25 left in the wild due to habitat degradation and poaching.
Seeing a mountain gorilla in the wild is still extremely uncommon, despite the fact that their population has grown especially in recent years due to WWF conservation initiatives. The location of the gorillas and the expense of traveling to them account for a substantial portion of this.
It's very amazing to see the black-eyed leaf frog, also known as the Morlet's tree frog, with its lime-green skin and protruding inky pupils. that is, if you're fortunate enough to see a glimpse.
There may just be 100 mature Cuban larger funnel-eared bats left in the world. These animals with tan hair have enormous ears and a tail that is longer than their head and body put together.
There are fewer than 100 spoon-billed sandpiper couples remaining in the world, and they are severely threatened with extinction. Its striking bill is matched in style only by its lovely plumage, which is as eye-catching and unique in the winter as it is in the summer.
The rarest marine animal is the vaquita, which is native to the Gulf of California in Mexico. Since its initial discovery in the late 1950s, this tiny porpoise has been fighting to survive despite illicit activities and fishing nets.
The largest bamboo lemur and the one with the fewest remaining in southeast Madagascar is the greater bamboo lemur, which may be recognized by the white tufts extending from its ears.