maintaining breeds

Mating is an indispensable activity of animals to maintain the race. But surely you will be surprised with the way the street delivery has 1-0-2 of the animals below.

Biologists at the zoo in Schoenbrunn, Vienna (Austria) have succeeded in artificial insemination for female elephants from frozen sperm of a wild African elephant.

In order for the mutant gene not to be passed down through generations, humans must deliver their sperm (or eggs) to genetics experts to cleanse them from any genes that are