A silent invader, barely visible to the naked eye, is rapidly multiplying across the American landscape, raising urgent ...

“Deer ticks have a two-year life cycle, so current-season weather isn’t likely to result in an increase in tick populations active now, but a warm winter and spring may extend the period ...

Before you head outdoors this summer, health experts have a critical warning for New Yorkers: watch out for ticks—because ...

The largest tick may swell to the size of an apple seed after it feeds, but many ticks are much smaller than that. Ticks are flat before they feed. As they feed, they expand in size and become round.