Rhinoceros Horns May Be Shrinking, According to a Recent Study

Photos suggest rhino horns have shrunk over past century, likely due to hunting

How Far Do We Go to Save a Species?

Poachers kill last female rhino in South African park for prized horn, Endangered species

Rhino Horns Have Gradually Decreased in Size over Past Century, Image-Based Study Shows

World's last male northern white rhino has died

Rhino horns are shrinking - Civilsdaily

Group: Last Javan rhino in Vietnam killed for horn - The San Diego Union-Tribune

SOUTH AFRICA: Rhinos have lost 75% of their population in less than ten years

Rhino is pregnant using embryo transfer. Here's why that's important

Rhino's lack of genetic diversity not new - Scimex