Are there any undiscovered animals?

Sure. We know all about the Adulterous Donald Junior, the Brainless Eric and the Greedy Ivanka. but we know next to nothing about the Pudgy Recluse Tiffany and the Pouting Barren. Psychologists and Evolutionary Scientists are forming teams to fill in our Knowledge Gaps on these fascinating yet repulsive creatures.

Certainly

Loads of them

I wish I could find those bed bugs

Apparently yes in the deep deep deep part of the Ocean. Too far to go down.

I am sure there are, we find more every day...

Most likely

Maybe

Loads.

Oh yes. Many will go extinct before we ever learn of their existence.

of course