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AnimalsBy Joe Burgett -

Look Out for these Problematic Invasive Species
[Image via Reinhold Leitner/Shutterstock.com]


  • Native To: North America, Europe, Asia
  • Invading: Their Native Land

To be fair, deer are found worldwide. There are some in the species that have been introduced elsewhere, however. This includes the Red Deer, which was introduced to Argentina, Australia, and New Zealand. Yet the most interesting thing about deer is that they are actually invasive to the place they are native. While it is true that some have been introduced, a place like the United States of America has been seeing deer for several centuries. It’s native to this land. The Whitetail Deer, for example, is widespread.

Look Out for these Problematic Invasive Species
[Image via Lux Blue/Shutterstock.com]
Yet the population has gotten out of control, especially during the time of year when hunting deer is not allowed outside private land. In fact, hunters are only allowed a specific amount per hunting season too. This is to help keep the population from being reduced too heavily obviously. Yet deer reproduce heavily, causing millions to pop up every year. They have interrupted agricultural territories, and they are even known for causing more car accidents than any other species in America COMBINED. This makes them responsible for over 200 human deaths per year.

Look Out for these Problematic Invasive Species
[Image via Sushaaa/Shutterstock.com]

Killer Bees

  • Native To: Nowhere
  • Invading: North & South America

This is actually the only animal on the list that is not actually native to any region. Known as the Africanized Honeybee, they have been referred to as “Killer Bees” by most people for a long time. This is primarily due to the fact that they have actually been responsible for many human deaths. How is it that this species is not native to any area? Killer bees are actually a hybrid bee species. They are a cross between a Western Honey Bee and East African Lowland Honey Bee.

Look Out for these Problematic Invasive Species
[Image via Fee.org]
The species was bred to see if there might be an increase in honey production with two species that do this well…just in different ways. The species was introduced to Brazil in 1956, confined in a quarantined area. This changed when in 1957, 26 swarms of the bee managed to escape. They began to breed heavily, making their way through South & Central America. By the 1990s, they managed to make it into North America. Killer bees have been a notable invasive species there ever since.


Where Do We Find this Stuff? Here are Our Sources:

National Institutes of Health

U.S. National Invasive Species Information Center

U.S. Endowment for Forestry and Communities

Centers for Disease Control (CDC)

National Oceanic and Atmospheric Administration (NOAA)

U.S. Department of the Interior

Australian Department of Agriculture, Water, & The Environment

Columbia University

University of California, Riverside: Center for Invasive Species Research

National Geographic

World Wildlife Fund

National Wildlife Federation

Smithsonian Magazine

Live Science