There are many different types of RNases, each with its own specific function. Some examples include:

* Ribonuclease A (RNase A): This is a common laboratory enzyme used to degrade RNA. It cleaves the phosphodiester bond between pyrimidine nucleotides (cytosine and uracil).

* Ribonuclease H (RNase H): This enzyme degrades RNA:DNA hybrids. It is important in DNA replication and repair.

* Ribonuclease P (RNase P): This is a ribozyme (an RNA molecule with catalytic activity) that processes the 5' ends of tRNA molecules.

Let me know if you'd like more details about specific RNases or their functions!