Hunter Miller
April 2012
Hybrids
What are
hybrids? What do they do? What are they for? Hybrids are a “different” type of
species when the egg of one animal and the sperm by humans because they are not
normally able to in the wild of another such as a “male tiger” and a “female
lion” make a “Liger” which has characteristics of both animals. Ligers enjoy
swimming, which is a characteristic of tigers, and are very sociable like
lions. Ligers exist only in captivity because the habitats of the parental
species do not overlap in the wild. Hybrids are very rare in nature and are
most of the time only made by humans intervening with the animals and sex
cells.
Other animals that are hybrids are Mules. They
are a combination of a horse and donkey and are used for working on farms and
doing work that donkeys cant do because they are to small and not strong enough.
Other animas include hybrid striped bass a.k.a. wipers or “white rock bass” and
tiger trout which are brown and brook. What is unique about tiger trout is that
they have an extra setoff chromosomes which gives them a survival rate that
rises from 5% to 85% survival rate There
is a downside to hybrids even though they are a new species, they can’t
reproduce. The definition of hybrid is: the
offspring of two animals or plants of different breeds, varieties, species, or
genera, especially as produced through human change for specific genetic.
Even though they can’t reproduce,
they have some purposes or cool things about them. Mules are used for work; ligers
aren’t used for anything in particular but are the largest cat in the world. Charles
Darwin began the hybrid revolution by proposing that species of plants and
animals will change over time. The changes or mutations that helped a species
survive were the traits in a species that were then more likely to be passed on
to the next generation such as color, blood type, and characteristics.
Some hybrids are not even living!
Most people know the “Toyota Prius” this is a hybrid. It is combined with
electric and gasoline motor making it a hybrid car. The uses of a hybrid car
are to improve gas mileage, reduce pollution, and give people a cheap type of
transportation that will take a “dent” out of their wallet which will help the
economy and gas prices and will help out everyone and is the cheaper solution
of the future. Even though they are a great help to the economy and peoples
wallets they are not the solution to all the problems and hybrids can help but
aren’t the perfect cure
Even though almost all hybrids are
made in nature, that doesn’t mean all of them are made by humans. It is a rare occasion
in the wild, with the brook trout having 84 chromosomes and the brown trout 80.
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