Most Invasive Eastern Grey Squirrels can grow up to 17 to 20 inches long. Eastern Grey Squirrels can be found mostly in forests, but they can also be spotted in backyards, gardens, and city parks. They live anywhere where there is large, deciduous trees. Eastern Grey Squirrels tend to live in the cavities in trees. They like living in there because it is nice and warm and dark. The trees they prefer to live in are White Oak, American Beech, American Elm, Red Maple, and Sweetgum(4). Eastern Grey Squirrels can be classified as granivores which are seed eaters. They feed on mostly tree seeds during the year and flowers and trees buds during the winter and spring. Eastern Grey Squirrels can swim and they swim like dogs with a dog paddle with their heads above water(5). Common Name: Eastern Grey Squirrel Scientific Name: Sciurus Carolinensis Where on Earth is it a problem: The Eastern Grey Squirrels tend to cause more problems in Britain. The Eastern Grey Squirrel is such a problem in Britain due to the fact that they out number the Red Squirrel which may also be found in Britain and since it is hard for two types of animals to co exist one of them has to leave and since the Eastern Grey Squirrel is larger in numbers they win. The Eastern Grey Squirrel is such a problem that the IUCN listed it in the top 100 most invasive species in the globe. Where did it come from?: The Eastern Grey Squirrel can be found in the Eastern United States and parts of Canada. It may also be found in New Brunswick to Manitoba, South to Eastern Texas and Florida. It has also been introduced in Ireland, and Britain, Italy, South Africa, and Australia.
Most Endangered Mako Sharks can be up to 13 feet long and weigh up to 740 pounds. The Mako Sharks has thousands of razor sharp teeth which gives it the capability to tear its prey in two. The Mako Shark can reach speeds up to 45 miles an hour. The Mako Shark's ability to strike its prey from below is one of its greatest adaptations. Mako Sharks can be sexually mature when they become 7-8 years old. Mako Sharks are pregnant for 15-18 months. Mako Sharks give birth to about 10-18 young ones (1). The Mako Shark has some distinguishing characteristics such as when the sharks mouth is closed you are still able to see their teeth, they have moderately short pectoral fins, and the lower side of their nose is white(2). The Mako Sharks are endangered like mostly every other types of sharks due to the fact that they are being hunted excessively by humans just for their fins due to the fact that their fins are of good use because people use them for certain types of medicine(3). Common Name: Mako Shark Scientific Name: Isurus Oxyrinchus or Isurus Paucus Where does it live?: The Mako Shark lives in warm and temperate waters between 50 degrees north and 50 degrees south. Mako sharks can also be found in Australia and New Zealand.
Favorite Keystone Beavers are considered a keystone species due to the fact that they play a crucial role in biodiversity where they live. Beavers benefit humans due to the fact that they decrease damaging floods, recharge drinking water aquifers, they also remove pollutants from surface and ground water(6). Some problems that come with beavers may be that when they cut down trees or pieces of tress for their damns when it falls it may cause it to fall on landowners crops or livestock. When that happens it may cause the landowners to get mad and report them and then the beavers might get put to sleep or moved to a different location(7). Common Name: Beaver Scientific Name: Castor Canadensis Where does it live?: Beavers like to live next to streams, rivers, and lakes. They tend to go to places that have that which is North America, Europe, and Asia.
Coolest Predator Adaptation The Peregrine Falcon has a body length from 15-20 inches. It also has a wing span of 3 and a 1/2 feet. It can also weigh up to 3 pounds. The Peregrine Falcon hunts mostly birds. The Peregrine Falcon mainly hunts on starlings, pigeons, blackbirds, jays, shorebirds, and waterfowl. Peregrine Falcons rarely ever hunt for mammal, reptiles, or insects(8). Peregrine Falcons were on a steep decline and very close to going endangered during the mid 20th century. They did become endangered in parts of the United States. Right now that problem is on the process of getting fixed due to the fact that they have strongly rebounded since the use of DDT and other chemical pesticides were curtailed(9). Common Name: Peregrine Falcon Scientific Name: Falco Peregrinus Where does it live?: The Peregrine Falcon lives in locations that range from the Arctic Tundra to the Tropics.
Coolest Prey Adaptation The Yellow Band Poison Dart Frog are mainly recognized by their bright yellow and dark brown stripes all around their body. The Yellow Band Poison Dart Frog's range from 1 to 5 centimeters. They hardly ever reach 5 centimeters long. They have adhesive pads on the bottoms of their feet and fingertips which help them climb up trees and other objects. What make them a cool prey adaptation is the fact that they can secrete a highly poisonous nerve toxin out of their body. Their bright colors serve as a warning label for predators. People in Central and South America catch these frogs very swiftly and use their poison to coat their darts and other weapons to catch other prey with(10). Yellow Band Poison Dart Frog's mainly feed on ants, termites, tiny beetles, spiders, and other little dart frog tadpoles. The Yellow Band Poison Dart Frog's sex can not be told externally except if you could tell from their breeding behavior. Yellow Band Poison Dart Frog's do not secrete poison due to their different diets(11). Common Name: Yellow Band Poison Dart Frog Scientific Name: Dendrobates Leucomelas Where does it live?: The Yellow Band Poison Dart Frog can be found in the Northern part of South America and Venezuela. It can also be found in parts of Guyana, Brazil, and the extreme eastern part of Columbia.