The colonies of penguin have been decreasing at an alarming rate. Experts warn that there are about 17 species of penguins in the world and 11 of these are in the danger of extinction. For example, only few thousands of Galapagos penguins are remaining and only few thousands of yellow-eyed and fiord land penguins survives. Like other species, the number of penguins in their natural habitat has dramatically decreased. Scientists estimate that more than three quarters of the world penguin colonies may disappear if nothing is done to save the situation. There are two main reasons why penguins are disappearing at an alarming rate – economic reason and ecological reasons. If penguins disappear, it means that the world will lose their contribution ecologically and economically.