Ticks are parasitic insects that feed off the blood of various animals, including deer, dogs, and humans. Deer ticks, a common subspecies, take their name from their propensity for feeding on white tailed deer. Ticks are small and round, and will latch onto targets, and grow in size as they feed.
Ticks can spread various diseases, including lyme disease, and often inhabit tall grass and shrubs, but can also climb trees to use branches to infest new targets or locations.