A common parasite expands across species by abandoning sex, boosting short-term spread while risking long-term collapse.

Hard Time on Planet Earth, a short-lived CBS series, followed Jesse, a battle-hardened alien soldier exiled to Earth as ...

What do you get when you take an alien parasite and smush it together with a human being? Would you get to become a ...

"Star Trek" is home to countless alien species, many of whom offer beloved characters. Some are not. We rank the 10 most ...

Why do parasites harm their hosts? That's a question evolutionary biologists ask as they try to predict how a parasite might evolve and perhaps become more lethal in response to control methods, such ...

It is no wonder that cats and dogs are beloved members of the family; they are cute, cuddly, and always willing to provide love and affection. However, these sweet canines and felines are also prone ...