They can be. Roundworms are adapted to infesting dogs and cats primarily, but they can also infest humans. When they do so, they can cause severe problems including visceral larval migrans (when the worms travel through the abdominal organs) and ocular larval migrans (when the worms travle through the eye). Both of these conditions can cause major medical problems, including liver failure, kidney failure and blindness.
nothing
They're round and fluffy!
Yes; they can be.
Yes. There are roundworms of different species that can infect humans and they can cause serious health issues. Roundworms common in puppies and kittens are some of the roundworms that can infect humans which is why it is important to treat puppies and kittens for parasites early and as often as recommended by your veterinarian.
There are several examples of parasitism in the world. A few are fleas on dogs, round worms in humans, and flat worms in cats.
(it would be false to say that all flatworms are parasitic--the idiot that wrote that wasn't so smart, so I had to change that-- because the PLANARIAN-for example, is flatworm and that is a harmless little critter) ~round worms are ROUND ~flat worms are FLAT ~Round worms have 2 body openings (mouth & anus) *random fact: 1/2 of all roundworms are PARASITIC, and 50 species affect humans**
round worms are round and flat worms are flat!
No
Penguins are no danger to Humans, Humans are a Danger to Penguins.
Round worms are nematoda, which are, mostly, parasitic worms. A round worm is also called a Guinea worm.
No. Humans have lungs but worms do not.
Yes, humans can get butt worms.