A parasite called Toxoplasma gondii lurks inside 1 in 3 people worldwide, hiding out in the brain and other organs. Now, scientists have hijacked this microorganism to shuttle drugs into the brain — ...

A Toxoplasma gondii tissue cyst. The pathogen is one of the most common infectious parasites in the world and could lay dormant in up to half of the world's population, as well as almost any ...

An unassuming single-celled organism called Toxoplasma gondii is one of the most successful parasites on Earth, infecting an estimated 11 percent of Americans and perhaps half of all people worldwide.

When a parasite infects a host, it can manipulate host behavior, which may help spread the parasite to new hosts, or enable the parasite to complete its life cycle. Parasitic worms known as hairworms ...

Wolves are pack animals, living in family groups led by a matriarch and her mate. Some wolves stay with their pack their whole lives, helping hunt and raise pups like aunts and uncles as they mature, ...

Okay, They're back out. Look at them. There's three right there. Close her back, look at that. Holy, I got *** whole pack of wolves there. Look at this. What's that? Can you hear that? Oh my God, I'm ...