The correct answer is that earthworms have 5 pairs of hearts. A popular misconception is that earthworms have one heart, but the earthworm heart is actually 5 pairs of aortic arches.
Moist, oxygen-poor soil causes earthworms to come to the surface so they can breathe. If you have ever seen worms on a sidewalk after it rains, then it is because they are trying to escape being waterlogged from the rain filling the soil.
Earthworms don’t lay eggs but they lay cocoons which contain multiple fertilized eggs. The cocoon protects the developing eggs inside and regulates the climate
The warble is a small version of the mature fly, but with a worm-like shape rather than a fly-like shape. It burrows into the skin of a rabbit or rodent and absorbs nutrients. The animal may show pain or irritation near the location of the worm, as well as excessive grooming behavior.
Mango worms or mango flies are very similar in appearance to the common housefly, except they are bigger in size and they also have a narrow abdomen. They are hairy, have large bulging eyes and have a preference for sweet liquids.
Robin's sense of sight plays a critical role in locating and identifying worms and other food sources. Their vision is their most forward-thinking sense, allowing them to find food based on the movement of the worms or the soil around it.
Wax worms can live off of pretty much any type of beeswax or honey, but some believe that giving them extra beeswax helps enhance the levels of protein in the wax worms. This makes them healthier and larger, which makes them a more desirable food source for your reptile.
Tomato worms come from eggs that are laid by moths, in this case. These moths lay eggs on or near tomato plants, and then they hatch and grow into the dreaded tomato hornworm. The best way to prevent these pests is through certified organic pest control.
Wax worms are good treats to offer your adult bearded dragon every so often. Wax worms should never become a staple part of a bearded dragon diet, because they are high in fat and can cause obesity. Provided that you don’t overfeed your bearded dragon, these treats shouldn't cause any health issues.
There have been a number of experiments performed which have tried to see if worms can feel pain and the answer is yes. Even though their nervous systems are very different from ours, it does not mean that they do not suffer pain in the same way that humans do.