Harmless and no danger to pets or humans.
Tiny black bugs in the carpet.
They are not fleas and are not termites.
Slow moving tiny black beetles that crawl or fly around homes.
Others might be mottled with spots of brown and black on a lighter background.
I just saw an article on thought co about these tiny black bugs.
Some are black or dark enough to appear black when observed with the human eye.
These small black bugs have short oval body and short inconspicuous antennae on their head.
Like many other beetles they are round or oval and convex like ladybugs.
They are called snow fleas and come out in winter.
They are an anthropod.
Little tiny black bugs in house carpets and closet drawers such as carpet beetles feed off the fibers in cloth fabrics which can be such a pain to clean.
They can cause damage to natural cloth fibers or cereals.
Carpet beetles are covered in tiny hairs which are difficult to see unless you look at them under magnification.
Google little black bugs on thought co for more info.