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Humans have introduced more different species to new environments than any single document can record. This list is generally for established species with truly wild populations— not kept domestically, that have been seen numerous times, and have breeding populations.
In some cases, introduced animals may unintentionally promote the cause of rewilding. [42] For example, escaped horses and donkeys that have gone feral in the Americas may play ecological roles similar to those of the equids that became extinct there at the end of the Pleistocene. [43] The exotic pet trade has also been a large source of ...
This list of introduced mammal species includes all the species of mammal introduced to an area without regard to that territory being or not being their native area of occupation or the success of that re-introduction or introduction to the area. This practice has been harmful in many areas, although some introductions are made with the aim of ...
Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million in total. Animals range in size from 8.5 millionths of a metre to 33.6 metres (110 ft) long and have complex interactions with each other and their environments, forming intricate food webs.
Introduced animals of Hawaii (2 P) I. Introduced mammals of Australia (1 C, 16 P) Invasive animal species (4 C, 9 P) Pages in category "Introduced animals"
Ctenophores are one of, if not the, oldest animals on Earth — quite possibly a sister to all other animals in the tree of life, so “they provide a really unique opportunity to study ...
Introduced animals (6 C, 2 P) Invasive species (7 C, 26 P) N. ... Pages in category "Introduced species" The following 13 pages are in this category, out of 13 total.
Of the 1,189 migratory creatures studied, more than one in five are threatened.