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The extinction of animals - and in a wider sense of biological beings- has always taken place. Actually several so called major extinction events (time periods with a high rate of loss of species) have occurred throughout the times. (see: http://en.wikipedia.org/wiki/Extinction_event)
More interestingly humans are more carefully taking note of possible extinction of animals as the beginning of 1800. This is to be seen with the mapping and charting of species which hence allowed humans to perceive extinction.
It can be reasoned that extinction to some degree is a natural phenomena (which even took place before human impact possible). Still the current loss of biodiversity (which is also represented in animals becoming extinct) is something new. It is the first time that the loss of biodiversity is caused by a certain species (humans) instead of major changes in the environment.
What else can I help you with?
Which animals have become extinct since 1909?
humans
How do animals become extinc?
other animals on a food web get lower in population and since they compete they become extinct
Which animals have become extinct since 1948?
Caspian Tiger - 1957
How many species of animals become extinct every day in the Amazon?
35,150 animals become extinct every year.
How many species have gone extinct since 1681?
It is hard to calculate the number of animals that have become extinct since 1681 since some species went extinct before scientists knew they existed. What is known is that more than 90 species of birds and hundreds of species of mammals have gone extinct since then.
How are endangered and extinct animal similar?
Endangered and extinct animals are similar because endangered animals sometimes become extinct.
Why do most species of animals become extinct?
Most become extinct because they can not adapt to changes in their environments. Those that can don't become extinct.
When did the brachiosaurus become extinct?
it came Extinct for eating other animals
Why animals get extinct?
Animals become extinct from human or natural events e.g deforestation and natural weather
Why will there be a shortage of food if plants and animals become extinct?
If all animals go extinct there will be no need for food!
How could animals be extinct?
Animals are extinct when there's no known animals part of the species still alive.Or, if you're asking how they become extinct, that can be because of many causes.
What happens to animals that become extinct?
Animals that become extict have fossils or bones left from when they die.
