This document discusses several animals native to Mexico. It describes two hairless dog breeds called the Xoloitzcuintli and techichi. It also mentions hummingbirds and their name in the ancient Mexican language. Two species of monkeys found in Mexico are described as well - howler monkeys and spider monkeys. The document provides details on snakes, including that the Nahuatl word for snake is coatl. It discusses the axolotl, a salamander-like creature that never reaches adulthood. Overall, the document presents information on various Mexican animals and their importance to the local environment and culture.
The relationship between animals and the selection pressures of their environments can be outrageously complex. All creatures on the planet today are the result of millions and millions of years of these interactions—generation after generation of natural selection for traits/genes just a little bit more fit for each population’s unique and changing environment. Yet, for each species and each adaptation, the underlying mechanism is the same:
In response to selection pressure, the frequency of traits and the genes controlling those traits changes in a population over time. That’s evolution.
The relationship between animals and the selection pressures of their environments can be outrageously complex. All creatures on the planet today are the result of millions and millions of years of these interactions—generation after generation of natural selection for traits/genes just a little bit more fit for each population’s unique and changing environment. Yet, for each species and each adaptation, the underlying mechanism is the same:
In response to selection pressure, the frequency of traits and the genes controlling those traits changes in a population over time. That’s evolution.
The origin of introduced rainbow trout (Oncorhynchus mykiss) - in the Santa C...International Aquafeed
Salmon and trout have been transplanted to habitats throughout the world and self-sustaining populations have been successfully established globally, with the exception of Antarctica (MacCrimmon 1971; Quinn et al. 1996; Nielsen 1996). Rainbow trout (Oncorhynchus mykiss) was first introduced into Argentinean Patagonia, the southernmost region of South America, at the turn of the twentieth century and eventually became the most conspicuous freshwater species in major river basins of the region (Pascual et al. 2002b).
The origin of introduced rainbow trout (Oncorhynchus mykiss) - in the Santa C...International Aquafeed
Salmon and trout have been transplanted to habitats throughout the world and self-sustaining populations have been successfully established globally, with the exception of Antarctica (MacCrimmon 1971; Quinn et al. 1996; Nielsen 1996). Rainbow trout (Oncorhynchus mykiss) was first introduced into Argentinean Patagonia, the southernmost region of South America, at the turn of the twentieth century and eventually became the most conspicuous freshwater species in major river basins of the region (Pascual et al. 2002b).
2. The ancient Mexicans called Huitzitzilin (spine) the hummingbird because its peak is sharp, sharp.
Hummingbirds buzz when they fly because they flap their wings as do bees and dragonflies.
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3. The two most popular breeds of dogs or Mexicans were hairless bald, skin wrinkled, color ashen
One of them, of medium size, is the Xoloitzcuintli, meaning monstrous dog.
In ancient Mexico, the dog was called itzcuintli.
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4. The other, called techichi, were small, short-legged.
Born with hair, but after greasing the depilated turpentine ointment.
The raised as pets and made them fat.
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5. As the animal was more attached to family and loyal to his master, he sacrificed to the death of his master to accompany the
soul of the deceased
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6. It was assumed that this way you facilitated the difficult path to Mictlan or the world of the dead.
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7. The New World monkeys, America, are flattened nose and are called new world monkeys. The Old World has a prominent nose,
are called catarrhines. In Mexico we have two species of new world monkeys: howler monkeys and spider monkeys.
Spider monkeys live in groups of 10 to 50 individuals led by the oldest. They inhabit the forests of the warmer regions.
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8. The howler monkeys inhabit the same regions as the spider monkey. Are more robust and has reddish black fur on the belly
and legs.
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9. In Nahuatl legend of the four ages of the world is told that, because of the strong winds that destroyed everything, humans,
trying to escape destruction, climbed trees and turned into monkeys.
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10. Axolotl means water monster, because it is derived from two Mexican words:
atl, water, and Xolotl monster. The axolotl is a strange animal: it never reaches its adult perfect.
A few survive in the canals of Xochimilco and others in the depths of Lake Patzcuaro.
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11. In the Nahuatl or Mexican language, says coatl snake.
Coatl also means twin or twin.In Mexico there are about five hundred species of snakes.
Only fifty are dangerous to man.
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12. However, these animals appear to be important for agriculture and forest conservation, as when they are young eat insects,
and when they are older eat rats, mice and gophers, plus chase the pests.
Many farmers let boas live in their barns or barns to eat the rodents that destroy their crops.
The meat is tasty boas, and many eat it.
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13. Coatl was also the name of one of the Mexican calendar days.
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14. Living things are a balanced, universal benefit concert for all, including men.
Animals contribute to the preservation and growth of forests and all kinds of vegetation and agriculture.
It is true that some insects are pests that eat leaves and fruit bite.
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15. The animals, in turn, contribute to the preservation and growth of forests, pollinating flowers of many species, dispersing
seeds and removing different kinds of pests.
Mexican animals that we present, some very beautiful, some very strange, are all important.
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