Parasitism evolved at least 223 times, far more than the previous estimate of 60. It arose more times in certain phyla (e.g., arthropods, nematodes, flatworms, and mollusks) than in others. Today, ...

Researchers have discovered a parasite present in seawater and which belongs to a primitive lineage; they have named it Txikispora philomaios. This organism will help to explain how multicellularity ...

Add Yahoo as a preferred source to see more of our stories on Google. To survive in the harsh wild, many animals turn to drastic measures for food. An example of this is a feeding strategy known as ...

For a long time, scientists believed that parasitic relationships between marine species developed much later in Earth’s history. But new fossil evidence from Morocco suggests otherwise. A recent ...

Haplorchis pumilio is far from a household name. But scientists have just discovered a diabolical strategy these microscopic parasites use against their enemies that’s never been seen before. When ...

Ancient fossils unearthed in Morocco reveal parasitic worms burrowing into mollusc shells approximately 480 million years ago, pushing back the known timeline for parasitism by 60 million years. This ...