These animals are perhaps the most endangered large animals on earth. There are only a few thousand of these left on the face of the earth, and they are being slaughtered by poachers. What are they?

The primary threat facing these magnificent creatures is the illegal wildlife trade, driven by the high demand for their horns. In some cultures, the horn is mistakenly believed to possess powerful medicinal properties, despite having no scientific basis for these claims. In reality, a rhino's horn is not bone but is composed of keratin, the very same protein that makes up human hair and fingernails. This demand has created a black market where the horn's value by weight can exceed that of gold, fueling a brutal poaching crisis that has pushed multiple species to the edge of extinction.

There are five species of rhinoceros, and their survival statuses range from near threatened to critically endangered. The situation is particularly dire for Asia's Javan and Sumatran rhinos, whose populations have dwindled to mere dozens. In Africa, the black rhino is classified as critically endangered, having suffered a catastrophic 98% population decline between 1960 and 1995. While the southern white rhino has made a remarkable comeback thanks to conservation, the northern white rhino subspecies is functionally extinct, with only two non-breeding females remaining.

Around the globe, intensive conservation efforts are underway to protect the world's remaining rhinos. These initiatives include creating secure sanctuaries, deploying dedicated anti-poaching patrols, and working with local communities to reduce human-wildlife conflict. These programs are a critical last stand to ensure these prehistoric-looking giants, who have roamed the earth for millions of years, do not vanish forever.