I have serious and important questions.

Ravens. They have the intelligence. They have the tool using skills. They have the ability to remember which humans are friends and which humans are foes. Plus they are small, and we would underestimate them until it's too late.

On land: bees, wasps, mosquitos.
At sea: dolphins, porpoises.

Ants, if they all managed to work together.

Crows

Sounds like "Planet of the Apes".

None.

All other animals live in this world.
Not just on it

Bigfoot

Germs.