Dwindling Populations May Soon Make Giraffes Endangered Since the mid-1980s, the tallest land animal <br />has seen its numbers shrink by 40%. A couple years ago, giraffes were declared "vulnerable" by the International Union for the Conservation of Nature. Poaching and environment <br />encroachment are the main causes <br />for the species' population issues. They could now soon be classified <br />as "endangered" by the <br />U.S. Fish and Wildlife Service. This comes after activists and environmentalists <br />called for the agency to take action in 2017. Reviewing the status of <br />the giraffe's future <br />could take up to a year.