You are always their ancestor. The people who call you their ancestor are your descendants.
They are called a Swarm of Ants
it is because ,a group of ants is called a colony!
A group of ants is called a colony or an army.
A group of ants is called a colony or an army.
Because they are evolutionarily related - they both had a common ancestor. They have similar body shapes and similar social behaviours.
Call an exterminator.
someone from whom you are a descendant is called ancestor. Example: my ancestors built this country.
Ants
They it an anteater because it eats ants.
colony
I would call him by his name. You do not share a common ancestor, so are not related.