In a group of plants that is famous for luring its pollinators into a death trap, one species offers its flowers as a nursery in exchange. The discovery blurs the line between mutualism and parasitism ...

A symbiotic relationship is a long-term interaction between animal species that is beneficial for one or both animals. There are different forms: It’s mutualism we’ll mostly look at today. Two types ...

Head lice, fleas and tapeworms have been humanity’s companions throughout our evolutionary history. Yet, the greatest parasite of the modern age is no blood-sucking invertebrate. It is sleek, ...

Arisaema plants are known to terminally trap their pollinators after pollination. However, in one species, a fungus gnat can not only sometimes escape from the trap, but also lays its eggs into the ...