It's been 30 years since Dolly the sheep was born—where is cloning technology now?

When Dolly the sheep—the first cloned mammal—was born 30 years ago, she became one of the most famous animals in science ...
Terra Planet Earth on MSN

These animals look so different as adults that people once thought they were separate species

These Animals Look So Different as Adults That People Once Thought They Were Separate Species ...