The Earth has some 5 - 10 million species. It is estimated that we are losing ONE SPECIES PER DAY at the moment . What multitude of secrets will these creatures and plants take with them? By safeguarding the welfare of these endangered species we must also be safeguarding our own!
More information on the species most in danger of extinction can be found on the International Union for the Conservation of Wildlife's "red list", here: https://www.iucnredlist.org/