They've existed for about 600 million years. There are about 34,000 different types of worm; many are so small you wouldn't be able to see them without a microscope! Worms are hermaphrodite ...

In a lab at Duke University, tiny worms smaller than an eyelash are helping scientists study the effects of a group of ...

There are a few different ways that worms can wind up in your fish ... “Symptoms from this type of infection can vary,” Schumaker says. “Some infected people may not show any symptoms ...