This is a bit of a trick question! Bacteria is a broad category of single-celled organisms. There are thousands of species of bacteria, each with its own unique name.

Here are two examples:

1. Escherichia coli (E. coli): This is a common bacterium found in the intestines of humans and animals. It's usually harmless, but some strains can cause food poisoning.

2. Staphylococcus aureus: This bacterium is often found on the skin and can cause infections like boils, pneumonia, and food poisoning.

It's important to note that "bacteria" is a general term for this entire group of organisms, much like "animals" refers to a broad range of creatures.