Ticks did not arrive recently in the United States. These arachnids have ancient evolutionary roots. North America has supported native tick species for thousands, likely millions, of years. European settlement changed tick habitats and movement patterns, but it did not mark the beginning of ticks in America. Ticks already formed part of North American ecosystems…
Certain blacklegged ticks carry Borrelia bacteria and cause Lyme disease, but not every tick you encounter is dangerous. In the United States, the greatest risk exists in the Northeast, the mid-Atlantic, the Upper Midwest, and parts of the Pacific Coast. You face the most Lyme risk where infected blacklegged ticks live, especially in wooded, brushy,…
You may wonder, “have ticks always carried Lyme disease?” The answer is no. A tick must belong to a species capable of transmitting Lyme disease and must first acquire the bacteria from an infected animal. Only some ticks carry the bacteria that cause Lyme disease. Even an infected tick does not transmit it during every…
You may feel as though ticks are everywhere now. In many parts of the United States, your concern is justified. Tick populations, tick bites, and reported tick-borne disease have increased in several regions. Warmer conditions allow some ticks to remain active for more months. Tick risk is higher in many places because tick ranges are…
If you have ever found a tick on your skin after hiking, you may wonder, were ticks always around, or did they appear relatively recently? Ticks did not always exist in their modern form, but their lineage is remarkably ancient. Scientists have found recognizable tick fossils dating to roughly 100 million years ago, when dinosaurs…
If you’re asking, “have ticks gotten worse,” the answer is yes in many parts of the United States. Tick season lasts longer in some regions, tick activity appears farther north and at higher elevations, and more people encounter tick-borne diseases. The risk is not identical everywhere, and a bad tick year does not guarantee infection….
If you are asking, “have ticks always been this bad?” the short answer is no. Ticks and tick bites have threatened people and animals in the United States for more than a century. Changing weather, expanding wildlife populations, land development, and increased outdoor activity have made exposure more common in many places. You cannot eliminate…
When you ask, “where do ticks come from,” the short answer is that ticks come from natural habitats where vegetation, moisture, and animal hosts overlap. These parasitic arachnids do not hatch from soil or appear spontaneously in your home. They develop from eggs and reach new places by feeding on wildlife, pets, domestic animals, and…
A tick can stay attached for hours or even several days. You usually cannot determine the exact timing from its appearance alone. A flat tick may have fed briefly. A partially engorged or engorged tick suggests longer feeding. Species, life stage, feeding pace, and when you last checked your skin all affect the estimate. Remove…
You may be hearing that ticks are everywhere now and wondering, have ticks increased, or are people simply noticing them more? The evidence points to a real shift in many parts of the United States. Some tick species have expanded their ranges, some populations have grown locally, and tick activity may last longer in places…