Chinese Giant Salamander
The Chinese Giant Salamander is the largest salamander and amphibian in the entire world, reaching lengths up to 5.9 feet in total. These come from the Cryptobranchidae lineage, which dates back 170 million years. They are currently endangered, unfortunately.
The Solenodon is a venomous, nocturnal mammal that is known for burrowing into the dirt. Only found within a few Caribbean countries, this little creature is known as a living fossil due to being virtually unchanged for the past 76 million years.