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Because animals have a shorter life span.
No. Animals are the product of other animals of the same species reproducing. Plants are, however, the main food source of many animals.
There are thousands of kinds of animals in Africa. They have many different ways or reproducing.
adult human have 4 incisors
Many humans ans some animals are afraid of thunder.
There are 23 pairs of chromosomes in adult humans.
There are more animals than there are humans, but the overall total is constantly changing.
Every organism grows. Cells multiply. For animals, this means they learn their specific animal skills. For humans, it means we learn specific human skills. When we know many skills like our adult parents know, we are said to be grown up. However, just like teenage and young adult animals, young adult humans continue to learn and learn from mistakes even though we are supposed to be "grown up".
1,000 humans
Plenty. Abusing animals is harsh. Too many.
not as many as there are in an adult humans body
It is many reasons. But the most common reason is humans, who "hunts" animals. Many races in South-America and Africa have been extinct, because humans are burning down the forrest. Many animals are endangered, because humans are greedy.