Truce

species NORTHERN WHITE RHINO endangered level CRITICALLY ENDANGERED Even if Najin and Fatu’s eggs are fertilized and implanted into a surrogate like this southern white rhino, they do not offer enough genetic variation to support a healthy population. Luckily, the San Diego Zoo has a collection of frozen tissue samples from 12 northern white rhinos that scientists will try to use to create egg and sperm cells using stem cell technology.