These photos of 11 common bug bites and stings can help you identify what's responsible. Plus, symptoms and expert tips to ...

Find Hair Lice stock video, 4K footage, and other HD footage from iStock. Get higher quality Hair Lice content, for less—All of our 4K video clips are the same price as HD. Video Back Videos home ...

Head lice affect more than 100 million people worldwide annually. Permethrin (1% formulation) is efficacious but resistance is emerging. Malathion (0.5% formulation) is an alternative, but ...

When Homo sapiens appeared some 300,000 years ago, at least six other human species already shared the planet. Here, in the studio of paleoartist John Gurche, are model representations of those ...

The researchers began by defining the parameters required to build a human brain-scale MPI system. Such a device should be able to image the head with 6 mm spatial resolution (as used in many ...

Head lice spread via head-to-head contact. This is why they are particularly prevalent in primary school-aged children. Almost all children (and teachers) will catch head lice at some point in their ...

Now, one theorist warns that the human civilization of 8.2 billion people is at a critical junction: teetering between what he forecasts will be authoritarian collapse and superabundance.

How the blood cells flow? RBCs in veins and arteries. Head louse with small head lice walking on white slippery smooth surface. Extreme closeup detail of human parasite. Pediculus capitis. Human ...

Human Planet, a cinematic experience, bringing you the most amazing human stories in the world today. Humans and wildlife surviving in the most extreme environments on Earth. The BBC has been ...

But there's one creature who affects all the others in quite an extreme way. It's called the human being. Because there are so many of us, and because we've learnt to make very powerful tools ...