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5 December 2013 11:26 am ,
Vol. 342 ,
Snake venoms are remarkably complex mixtures that can stun or kill prey within minutes. But more and more researchers...
At age 30, Dutch biologist Freek Vonk has built up a respectable career as a snake scientist. But in his home country,...
Since arriving on the island of Guam in the 1940s, the brown tree snake ( Boiga irregularis ) has extirpated native...
An animal rights group known as the Nonhuman Rights Project filed lawsuits in three New York courts this week in an...
Researchers have been hot on the trail of the elusive Denisovans, a type of ancient human known only by their DNA and...
Thousands of scientists in the Russian Academy of Sciences (RAS) are about to lose their jobs as a result of the...
Dyslexia, a learning disability that hinders reading, hasn't been associated with deficits in vision, hearing, or...
Exotic, elusive, and dangerous, snakes have fascinated humankind for millennia. They can be hard to find, yet their...
- 5 December 2013 11:26 am , Vol. 342 , #6163
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Aliens From Inner Space
3 December 1999 7:00 pm
This mug is the business end of a tapeworm, a parasite that infects millions of people and countless animals worldwide. Up to 100 millimeters long, this species (Hymenolepsis microstoma) uses its four suckers and hook-packed snout (called a rostellum) to latch onto the bile ducts of rodents, where it subsists by absorbing intestinal fluids. The image comes from Parasites and Parasitological Resources, one of several Web sites offering science educators an abundance of images, from malaria-carrying mosquitoes engorged with blood to human limbs swollen with elephantiasis. Check this page for more sites, including over 2300 slides collected by a medical professor during a long career fighting these critters.