The Milky Way has "eaten" smaller galaxies over billions of years. For example, it is currently consuming the Sagittarius Dwarf Spheroidal Galaxy, and there is evidence that it has merged with others in the past.
Isn’t that fascinating? Our Milky Way is like a cosmic vacuum cleaner, gobbling up smaller galaxies! The idea that it’s currently consuming the Sagittarius Dwarf Spheroidal Galaxy is mind-blowing! It really puts our place in the universe into perspective.
For example, it is currently consuming the Sagittarius Dwarf Spheroidal Galaxy, and there is evidence that it has merged with others in the past. 
