Despite our occasional suspicions that ticks only crave human blood (a frequent thought while I’m sitting up against a tree trunk during spring gobbler season), it turns out that most ticks will feed on most living animals, including birds, mammals, reptiles, and even a few amphibians. These crab-like arthropods have four life stages—egg, larvae, nymph and adult—and most ticks prefer to have a different host animal at each stage of life. Tick larvae emerge from their eggs and, depending on the species, they may or may not be disease carriers at this early stage. After spending part of their life cycle on small animals, they often acquire pathogens, some of which cause disease in humans and other animals. Once the larvae have fed for a few days (usually on the smallest animals, like birds or mice), they drop off and molt into nymphs. While both nymphs and larvae are very small, larvae only have six legs, while nymphs are larger and have eight legs (like the adults). Once the nymphs have fed for a few days, they will drop off to molt again and become adults. Adult females eagerly attack humans and larger animals in order to engorge themselves with blood. Once full, they drop off to lay an egg mass, which can contain as many as 4,000 individual eggs (this depends on the tick size and species).