An exotic species is a species that historically lives in one place, but that has been moved to a new geographic location due to human interference. There are other terms for an "exotic" species including non-native, non-indigenous and alien species.Know More
Sometimes exotic species are created when humans accidentally take a species and move it geographically, such as some species of rats, which were accidentally brought over on ships. However, many times the movement is done deliberately, such as when starlings were brought over from Europe to North America.
Exotic species do not necessarily have to harm the environment, and can even benefit it. Exotic species are most harmful when they compete for resources directly with another species in the geographic location, and are much better at competing that the native species cannot survive.Learn more about Zoology
According to University of Utah Health Sciences, cloning endangered species makes it possible for living animals to donate healthy cells and preserve a species. Scientists intend to use cloning to save the saola of Vietnam, the wild water buffalo and the banteng, according to the BBC. Such an assisted reproduction technique can also be utilized in the revival of already extinct species, such as the woolly mammoth.Full Answer >
Aside from the fact that an array of animal species makes life on earth more interesting, protecting endangered species has important health benefits to humans. In particular, animals fit into the well-established ecological food chain, and extinction causes a disruption to natural order, according to the National Wildlife Federation.Full Answer >
Sharks tend to live between 20 and 30 years, but the number and diversity of shark species makes it difficult to give a definitive answer on sharks as a whole. Notably, Spiny Dogfish and Whale Sharks can live to be over 100 years old.Full Answer >
The number of segments a crustacean has varies greatly depending on the species, but it is possible for all the segments of a crustacean to have appendages. The type of appendage differs according to whether it is on the region of the head, thorax or abdomen.Full Answer >