Scientists studying insects have identified a crucial biological mechanism responsible for increasing their survival against blood parasites. The finding, in which a high protein diet is linked to ...

Meet the leech, the misunderstood hero of aquatic ecosystems all over the world, who does not always suck blood!

A tick is viewed atop a pencil eraser in a laboratory in April in Fort Collins, Colo. (AP Photo/David Zalubowski) Local health officials are warning the community of a potential increase in tick ...